Part 2: I’m A 28-Year-Old Female Beat Cop In Chicago. Four Months Ago A Stray German Shepherd Walked Out Of An Alley On My Overnight Patrol. I Almost Shot Him. He Sat Down. Then He Followed Me For 122 Nights In A Row. The 123rd Night He Took A Knife For Me.

I’m going to tell this slow. The slow part is the whole story.

I want to tell you about the alley.

The alley off Pulaski Road between Madison Street and Warren Boulevard in East Garfield Park is approximately 380 feet long and 18 feet wide. It runs east-west between two rows of three-story brick apartment buildings that were built in the 1920s. It has six commercial dumpsters along its length. It has the back doors of a Polish butcher shop, a hair salon called Lala’s Cuts, and a small bodega run by an elderly Korean couple. It has terrible lighting. Two of the three streetlights at the alley’s intersections with Madison and Warren have been broken for at least two years. The Chicago Public Works Department has not fixed them.

I walk that alley on foot at least three times per shift. It is on my standard patrol route. I have walked it approximately 400 times in four and a half years.

On the morning of Saturday, August 17th, 2024, at 2:14 a.m., I was walking eastward through the alley as part of my standard rotation. My flashlight was on. I had my left hand on the grip of my flashlight and my right hand on the grip of my service weapon — a Glock 19 Gen5 that I had carried since the academy.

I had not drawn the weapon.

I had my hand on it.

I was nervous. It was a warm August night. I had been on shift for four hours. Three different gunshots had been reported within four blocks of my position in the previous 90 minutes. I had not been called to respond to any of them — they had all been responded to by patrol cars from the 11th District tactical unit.

I had been left to walk alone.

I turned my flashlight to the right toward dumpster number three.

Something moved behind the dumpster.

I drew my weapon.

My voice came out higher than usual. I said, “Chicago Police. Step out where I can see you. Hands up. Step out now.”

A German Shepherd walked out from behind the dumpster.

I want to tell you what I saw.

He was a large male German Shepherd in classic black-and-tan markings. He weighed approximately 95 pounds. He was thin — clearly a stray, clearly underfed — but not emaciated. He had a healed scar on his right shoulder that I would later learn was from a stab wound that had occurred before he met me. He had a small notch in his left ear. His coat was dirty. He had two small white patches of fur on his chest that did not show until he was sitting in good light. He had pale amber eyes — unusual for a German Shepherd, which usually have brown eyes.

He stopped about ten feet in front of me.

He sat down on the asphalt.

He looked at me.

I held my weapon on him in a two-handed shooting stance for forty-five seconds.

My hands were shaking so violently that the front sight of my Glock was visibly oscillating. I could not stabilize my hands. I knew, from four and a half years of training, that I was extremely close to a discharge — that my finger was on the trigger inside the trigger guard, that I had not chambered safety because there was no chambered safety on a Glock 19, and that if my hand jerked harder than it was already jerking, I was going to put a bullet through a dog who had not done anything to me.

The dog did not move.

He did not growl. He did not bare his teeth. He did not lunge. He did not pull his ears back.

He just sat.

His pale amber eyes were on my face.

He was reading me.

I want to tell you what I figured out later about what he was doing in that alley.

The German Shepherd I would later name Shadow had been a stray on the streets of East Garfield Park for approximately two years before the night I met him. He had been someone’s dog before that. The Chicago Police Department K9 unit would later run his microchip when they took him in — and they would find that he had been registered to a 51-year-old Chicago Public Schools security guard named Mr. Diesel Hartwell-Castellanos who had lived in a small apartment on West Madison Street and who had died of a fentanyl overdose in May of 2022, leaving his dog behind. The microchip had been registered when the dog was 8 weeks old in 2018. He was 6 years old when I met him. Mr. Hartwell-Castellanos had named him Bullet.

He had been on the streets of East Garfield Park for two years and three months before I met him.

He had survived.

He had learned to read humans. He had learned which humans were dangerous to him and which were not. He had learned which humans gave him food and which humans threw rocks at him. He had learned which humans were the police and which were not.

He had learned that female officers walking alone at night were sometimes vulnerable.

I do not know how he had learned this. I cannot prove that he had learned this.

But for four months he walked behind me at three meters every single night, and on night 123 he took a knife for me, and I am going to tell you the rest of the story.

After forty-five seconds with my weapon on him, I slowly holstered my Glock.

I sat down on the concrete of the alley.

I sat with my back against a brick wall.

I started crying.

I cried for about ten minutes. I cried in the way I had been crying in my patrol car alone for four and a half years — quiet, exhausted, controlled. The kind of crying that does not make any sound that another human could hear from ten feet away.

The German Shepherd did not move.

He sat ten feet in front of me.

He watched.

When I was done crying, I wiped my eyes with the back of my uniform sleeve. I stood up. I picked up my flashlight from where I had set it down. I adjusted my duty belt. I looked at the German Shepherd.

I said, “Okay. You can stay. I’m going.”

I walked out of the alley.

He stood up.

He walked behind me at approximately ten feet — three meters — keeping perfect parallel distance.

He walked behind me for the rest of my shift.

Five hours and 46 minutes.

He did not bark. He did not approach civilians. He did not approach other police officers when I had brief radio interactions with patrol cars. He did not chase squirrels or cats. He maintained the exact same three-meter distance for the entire five hours and 46 minutes.

At 6:00 a.m., when I walked back into the 11th District precinct on Harrison Street to end my shift, he stopped at the curb across the street.

He sat down.

He watched me walk into the precinct.

When I came back out at 6:14 a.m. in my civilian clothes to walk to my car, he was gone.

I drove home to my small one-bedroom apartment in Logan Square, about three miles from my beat. I lived alone. I had a roommate situation that had ended badly the previous spring and I had taken a small overpriced place to be by myself for a while.

I sat on my couch in my civilian clothes at 7:30 a.m. that morning.

I was supposed to sleep.

I could not sleep.

I sat on my couch for almost four hours staring at the ceiling thinking about the German Shepherd.

I went to work that night at 10:00 p.m. The shift was the same as the previous night. Same beat. Same route. Same lonely sectors of East Garfield Park.

At 10:14 p.m., as I was walking down West Madison Street about two blocks from the precinct, I felt something moving on my left.

I turned my head.

The German Shepherd was walking parallel to me on the other side of the street.

Three meters behind my own line of progress.

He had been waiting for me.

I want to tell you that I almost cried again.

I did not.

I just kept walking.

He walked with me for the rest of my shift.

He did this for 122 nights in a row.

I want to tell you about the 122 nights.

Some nights I talked to him. I would say, walking up Pulaski Road at 1 a.m., “Hey there. Cold night.” He would not respond. He would maintain his three meters. I would say, “Stay safe, buddy. There’s broken glass on this block.” He would step around the broken glass without looking down.

He was extremely intelligent.

He learned my route faster than my own supervisors had ever learned it. By night four he was anticipating turns. By night eight he was positioning himself to scan for approaching traffic before I crossed streets. By night twenty he was reading the body language of the homeless men and women who slept on the sidewalks of my beat and adjusting his position to put himself between them and me when they had certain postures or smelled a certain way.

He never approached the homeless men and women. He never threatened them. He never barked. He just positioned himself.

I learned to trust his positioning by night thirty.

If Shadow — I had not yet named him Shadow then, but I think of him as Shadow now — moved to a particular angle, I would put my hand on my radio. If he moved to the opposite angle, I would relax. I had no way to consciously verify his system. I just learned that his system worked.

I learned, by night sixty, that he was usually right.

I learned, by night ninety, that he was always right.

I started feeling safer on my beat for the first time in four and a half years.

I do not know if I can explain this to you if you have not done this job. I had been alone on the most dangerous beat in Chicago for four and a half years. Then one night a stray German Shepherd walked out of an alley and decided to be my partner. For 122 nights I walked an eight-hour shift on the most violent beat in the third-largest city in America with a partner who was not on the payroll, who was not paid, who was not even a recognized dog.

I started bringing food.

I would set a bowl of high-quality kibble at the corner of Pulaski and Madison at 9:55 p.m. He would never approach until I was at least 50 feet away. He would eat. He would catch up to me within ninety seconds.

He never accepted food directly from my hand.

He never let me touch him.

He maintained his three meters for 122 nights.

I never knew where he slept during the day.

I tried to follow him twice. He lost me both times. I did not try a third time. I did not want to lose his trust.

I want to tell you about night 123.

Friday, December 13th, 2024.

It was a Friday the 13th. The temperature was 22 degrees Fahrenheit. It had snowed two days earlier. There were still patches of slushy ice on the sidewalks. I was wearing my heavy winter uniform jacket over my regular uniform, with my service weapon, my duty belt, my body camera, my radio, and an additional emergency thermal blanket in my belt pouch.

I had been on shift for five hours and 47 minutes. It was 3:47 a.m.

I was walking down South Pulaski Road toward the alley between Madison and Warren — the same alley where I had met Shadow on August 17th. My route had been the same for 123 nights. Shadow had been walking three meters behind me on my left for the entire shift.

I want to tell you what I did not know.

I did not know that two men had been studying my patrol route for approximately two weeks. They had been watching from a vacant apartment on the third floor of a brick building on Pulaski Road that was overdue for demolition. They had been planning to assault me. They had a knife and a tire iron. They had decided to do it on Friday the 13th because they thought it would be funny.

They were Mr. Anders Marchetti-Strathmore, 32, and Mr. Drumm Vance-Pridgeon, 29. Both had been recently released from Cook County Jail. Both had outstanding warrants. Both had been drinking and using cocaine for approximately fourteen hours. They were not random street criminals. They had been planning this. The plan was to assault me, take my service weapon, and use the weapon to commit additional crimes that night.

They came out of the alley behind me.

I heard the footsteps about half a second before they reached me.

I started to turn.

The tire iron came down on my left shoulder.

It hit my heavy winter jacket and my body armor. It did not break the bone but it dislocated my shoulder. I went down to one knee. I reached for my service weapon with my right hand.

The first man — Mr. Marchetti-Strathmore — kicked the weapon out of my hand before I could clear the holster.

The Glock 19 slid across the icy sidewalk about fifteen feet away.

The second man — Mr. Vance-Pridgeon — was approaching me with a knife.

He had it in his right hand.

He was approximately six feet away.

I had approximately 1.2 seconds before he reached me.

I tried to stand up. I tried to reach my body camera button to alert dispatch. My left arm was not working because of the shoulder injury.

Then Shadow closed the three meters.

I want to describe what happened in the next 47 seconds because I have watched the body-camera footage approximately forty times. I have it memorized.

Shadow closed the three meters from my left rear to the man with the knife in 1.4 seconds.

He did not bark.

He hit Mr. Vance-Pridgeon in the chest at full sprint. He weighed 95 pounds. Mr. Vance-Pridgeon weighed 178 pounds. The impact knocked Mr. Vance-Pridgeon onto his back on the icy sidewalk. The knife slipped from his hand but did not fly far — it stayed within two feet of his shoulder.

Shadow was on top of him.

He had Mr. Vance-Pridgeon’s right forearm — the knife arm — in his jaws.

He was holding.

He was not shaking.

He was holding the arm in a controlled bite the way a trained police K9 holds a suspect’s arm.

Mr. Vance-Pridgeon was screaming.

He was kicking with his legs.

He was trying to roll.

Shadow was preventing him from rolling.

I want to tell you what happened to Mr. Marchetti-Strathmore — the man with the tire iron.

He was standing about eight feet away with the tire iron raised.

He was looking at Shadow.

He was looking at me.

He was deciding what to do.

He decided to attack the dog.

He swung the tire iron down at Shadow’s head.

Shadow released Mr. Vance-Pridgeon’s arm and rolled away from the swing.

The tire iron hit the sidewalk approximately one inch from Shadow’s left ear.

Shadow pivoted on the ice and lunged at Mr. Marchetti-Strathmore’s chest.

Mr. Marchetti-Strathmore had begun to swing the tire iron back up.

But Mr. Vance-Pridgeon had recovered enough to grab the knife from the sidewalk where it had fallen.

He stabbed Shadow in the right shoulder.

I saw it happen.

I was about four feet from Shadow at that moment.

I had crawled across the icy sidewalk on my one good arm and my knees to retrieve my service weapon.

I picked up the Glock at 3:47:34 a.m. according to the body cam.

I came up on my knees in a one-handed shooting stance.

I fired three rounds.

The first round hit Mr. Marchetti-Strathmore in the right thigh. The second round missed entirely. The third round hit Mr. Vance-Pridgeon in the right shoulder.

Both men dropped their weapons.

I shouted into my body camera, “Officer down, officer down. 11th District. Pulaski and Madison. Two suspects shot. K9 stabbed. Backup. Backup. Now.”

The body camera transmitted automatically. Dispatch confirmed receipt within four seconds. The closest patrol car was three minutes out.

I crawled toward Shadow.

He was lying on his right side on the sidewalk.

The knife was still embedded in his right shoulder.

Mr. Vance-Pridgeon had pulled it out of the shoulder when he had been hit by my third round — the knife had been pulled partway out but had been embedded again when Shadow had hit the sidewalk.

I want to be honest with you. I do not remember most of the next four minutes clearly. I remember crawling to Shadow. I remember putting my one good arm around his neck. I remember pressing my forehead against his forehead. I remember whispering, “Shadow. Shadow. I am here. I am here. Backup is coming. Shadow. Please stay. Please stay. You saved me. You saved me. Stay.”

I remember him licking my face.

Once.

I remember him thumping his tail once against the icy sidewalk.

I remember a Chicago Police patrol car pulling up at 3:51 a.m.

Officer Tomas Bouchard-Demidov, 41, and his partner Officer Penelope Hartwell-Olufsen, 35, jumped out. They had heard my radio call. They had been three minutes away.

Tomas got down on his knees on the sidewalk next to me. He put his hand on my back. He said, “Kestrel. Kestrel. We’ve got you. The ambulance is two minutes out. Can you tell me what hurts.”

I could not speak.

I was holding Shadow.

Penelope was on her radio calling for an additional veterinary unit. She knew Shadow. Every patrol officer in the 11th District had heard about Shadow over the previous four months. They had all seen him at distance during my shifts. They had treated him like an unofficial mascot. They had been calling him “Bouchard-Vasquez’s shadow.”

Penelope was calling for the Chicago Animal Care & Control emergency veterinary response unit.

She was crying as she radioed.

I do not think I had ever seen Penelope cry before.

The ambulance arrived at 3:53 a.m.

The Chicago Animal Care & Control emergency veterinary van arrived at 3:58 a.m.

Dr. Bear Marchetti-Solano, 47, a former Army Veterinary Corps captain who had been with Chicago Animal Care & Control for nine years, jumped out of the van.

He came over.

He saw Shadow.

He said, very quickly, “Officer Bouchard-Vasquez. I am going to take your dog. We are going to MedVet Chicago on Roosevelt Road. They have a 24-hour emergency surgical team. The knife wound is deep but I do not see arterial bleed. He has a chance. Do you authorize?”

I said, “He is not my dog. He is a stray. But — please. Yes. I authorize. Bill me. Whatever it costs. I pay. Please save him.”

Dr. Marchetti-Solano said, “Officer. Done. We are going.”

He loaded Shadow into the van.

Shadow tried to lift his head when they loaded him.

He looked at me.

I was on a stretcher.

I was 30 feet away.

I waved at him with my good arm.

He thumped his tail.

The van doors closed.

The van drove away.

I was transported to Rush University Medical Center on West Harrison Street. I had a dislocated left shoulder, a hairline fracture in my left clavicle, severe bruising on my left scapula, and minor frostbite on my right knee from kneeling on the ice. I was in the hospital for two days.

Shadow was at MedVet Chicago on Roosevelt Road.

He underwent emergency surgery at 4:47 a.m. The knife had punctured his shoulder muscle to a depth of approximately 5 inches but had narrowly missed his brachial artery and major nerves. The surgery took 3 hours and 14 minutes. It was performed by Dr. Imogen Hartwell-Bouchard, 52, a board-certified veterinary surgeon who had been at MedVet for 11 years.

He survived.

He was at MedVet for eleven days.

I went to see him on the afternoon of December 14th — about 12 hours after the attack — in a wheelchair pushed by my mother Mrs. Imogen Vasquez-Bouchard, who had driven up from Cicero overnight.

Shadow was lying on a heated medical bed in a recovery suite.

He had a small cone around his neck.

He had an IV in his front leg.

He had stitches across his right shoulder.

He was sleeping.

I rolled my wheelchair up to his bed.

I put my good hand on his uninjured left shoulder.

He woke up.

He looked at me.

For the first time in four months and one day, he held my gaze from inside three meters.

He thumped his tail.

He pressed his nose against my wrist.

He let me touch him.

I cried in his recovery suite for almost two hours.

My mother sat in a chair next to me. She put her hand on my shoulder. She did not say a word. She had been a single mother my whole life. She knew when not to talk.

I want to tell you what happened on the morning of Tuesday, December 17th, 2024, when the Chicago Police Department K9 Unit made a decision about Shadow.

Lieutenant Demitri Castellanos-Mackiewicz, 48, the commanding officer of the CPD K9 Unit, came to see me at the hospital on the morning of December 15th. He had a small file in his hand. He sat down next to my bed.

He said, “Officer Bouchard-Vasquez. I want to talk to you about your dog.”

I said, “Lieutenant. He is not my dog. He is a stray.”

Lieutenant Castellanos-Mackiewicz opened his file. He showed me a photograph of Shadow. The photograph showed Shadow’s microchip data.

He said, “Officer. Your dog is named Bullet. He was registered in 2018 as the personal property of Mr. Diesel Hartwell-Castellanos. Mr. Hartwell-Castellanos died of a fentanyl overdose on May 7th, 2022. He had no surviving family. Bullet — your dog — has been a stray on the streets of East Garfield Park for two years and seven months. He is not a registered K9. He has no training certification. He is, technically, an abandoned former pet.”

He paused.

He said, “Officer. I have been a CPD K9 handler for 24 years. I have certified seven K9 partners in my career. I have worked with approximately 140 other certified K9 partners. I have never seen a dog do what your dog did for you for 122 nights. And then on the 123rd night, he closed a three-meter gap in 1.4 seconds and physically apprehended an armed suspect with controlled bite technique that I would consider above the certification standard for our K9 Unit.”

He paused.

He said, “Officer. The Chicago Police Department is going to formally accept Bullet into the K9 Unit. We are going to do this not because he meets the standard. We are going to do this because he chose to be a police dog. He chose his officer. He chose his beat. He chose his job. We do not have a precedent for this. We are going to create one.”

He paused.

He said, “Officer. We are going to require you to be his primary handler. You will be transferred out of overnight foot patrol effective immediately. You will be promoted to the K9 Unit as a Junior K9 Handler with full benefits and a 12% pay increase. Your training program will begin in February when Bullet has recovered from his shoulder injury. The training will be modified to account for his pre-existing field experience. You and Bullet will be on the streets of Chicago as a certified K9 team by June of 2025. Officer. Are you willing to accept this transfer?”

I started crying.

I said, “Lieutenant. Yes.”

He stood up.

He shook my hand.

He said, “Officer Bouchard-Vasquez. I have one more question for you.”

I said, “Yes.”

He said, “Officer. Bullet was the name his previous owner gave him. You can keep that name, or you can give him a new one as his certified K9 handler. What is his name.”

I sat in the hospital bed for a long moment.

I thought about the 122 nights.

I thought about the three meters.

I thought about how he had walked behind me in every single one of those 122 nights like a shape I did not know I had been needing.

I said, “Lieutenant. His name is Shadow. Because for 122 nights he was the shadow I did not know I needed.”

Lieutenant Castellanos-Mackiewicz wrote it down on his file.

He said, “Shadow it is.”

Shadow was discharged from MedVet Chicago on Tuesday, December 24th, 2024 — Christmas Eve.

I picked him up. My shoulder was still in a sling but I had been cleared to drive. I drove him home to my one-bedroom apartment in Logan Square.

He walked into my apartment.

He sniffed the entryway. He sniffed the kitchen. He sniffed the living room. He walked into my bedroom.

He jumped up on my bed.

He laid down on the foot of it.

He looked at me.

He thumped his tail.

He had decided he was home.

I sat down on the bed next to him.

I put my hand on his head.

He did not flinch.

He leaned into my hand.

He fell asleep.

I cried at the foot of my bed on Christmas Eve 2024 for almost three hours while a 95-pound German Shepherd named Shadow slept with his head against my injured shoulder.

I want to write down a few things before I finish.

The first thing. Shadow and I completed our formal K9 certification training in June of 2025. We were the first ex-stray K9 team in Chicago Police Department history. We are now a certified K9 team in the 11th District. I am 28 years old. I am the youngest female K9 handler in the CPD. Shadow is 7 years old. He is the only K9 in the unit who came in pre-trained by his own life on the streets. He has the highest field-performance score of any K9 in our unit. He has, in our six months of certified work, made 14 apprehensions and 31 narcotics finds. He has not bitten anyone inappropriately.

He sleeps at the foot of my bed every night.

He has not slept anywhere else since Christmas Eve 2024.

The second thing. Mr. Anders Marchetti-Strathmore and Mr. Drumm Vance-Pridgeon were both arrested at the scene of the December 13th, 2024 attack. They were both convicted of multiple charges in March of 2025. Mr. Marchetti-Strathmore was sentenced to 17 years in Illinois State Prison. Mr. Vance-Pridgeon was sentenced to 22 years. Both sentences included enhancements for assault on a police officer. The enhancements made up about half the sentences. I attended the sentencing hearings. I did not speak. I sat in the back row. I am at peace with the outcomes.

The third thing. Mr. Diesel Hartwell-Castellanos — Shadow’s original owner — was buried at Mount Olive Cemetery on the West Side of Chicago in May of 2022. He had no surviving family. His grave is a small flat marker. I visited his grave in June of 2025 with Shadow. I sat on the grass next to his marker for about half an hour. Shadow laid down on the grass next to me. I told Mr. Hartwell-Castellanos, out loud, that his dog was okay. I told him that his dog had saved my life. I told him that I would take care of his dog for the rest of his life. I cried. Shadow put his head in my lap. He stayed there until I was ready to leave.

I bring flowers to Mr. Hartwell-Castellanos’s grave on May 7th every year now.

Shadow comes with me.

The fourth thing. I have, since the transfer to the K9 Unit, told my mother and my younger sister and my best friend Saoirse that I had been afraid every single night of my four and a half years on overnight foot patrol. I told them on Christmas Day 2024 at my mother’s house in Cicero. My mother cried. My sister hugged me. Saoirse, who is also a female cop, told me that she had also been afraid every single night. She had never told anyone either. We had been the same kind of brave for the same amount of time. We had not known.

We have made a promise to each other since: we will tell each other when we are afraid.

We have kept it.

I want to end with one more thing.

I want to tell you about a video that I have on my phone.

I took the video on the evening of Saturday, June 28th, 2025 — about six months after Shadow came home, on the night we passed our formal K9 certification test. The certification ceremony was held at the Chicago Police Academy on West Jackson Boulevard. Twenty-three other K9 teams certified that night. Shadow and I were the last team called.

Lieutenant Castellanos-Mackiewicz pinned a small bronze K9 Unit badge on my uniform.

He pinned a small bronze K9 collar tag on Shadow’s collar.

The tag is engraved with two lines.

The first line says: SHADOW.

The second line says: CPD K9 UNIT — HE CHOSE HIS OFFICER.

I knelt down on the academy parade ground.

I put my forehead against Shadow’s forehead.

I whispered, very quietly, so only he could hear: “Buddy. We did it. We are partners. Officially. I am yours. You are mine. The streets are ours.”

He licked my face.

Twice.

He thumped his tail.

The video shows the two of us forehead-to-forehead on the parade ground at sunset. It shows the badge on my chest and the new tag on his collar. It shows me crying and Shadow licking my face. It shows Lieutenant Castellanos-Mackiewicz in the background, also crying, very quietly.

The video is 47 seconds long.

I watch it almost every morning.

I will watch it for the rest of my life.

If you are a woman in a male-dominated profession — please understand that you do not have to be tough every minute of every day. You are allowed to be afraid. You are allowed to cry. You are allowed to tell another woman in the same profession that you are afraid and you have been afraid and you have not told anyone. There are other women in your profession who have been afraid the same way you have. They are waiting for you to tell them.

If you see a stray dog on your beat or on your block or in your neighborhood and the dog seems to be paying particular attention to you — please consider that the dog might be choosing you. Dogs choose people. They have been choosing people for 15,000 years. They have been choosing people who needed them. They are still choosing.

If you have a partner — human or canine — please tell that partner today that you trust them.

Trust is the only thing that holds the line at three meters in the dark.

I am 28 years old.

I have a K9 partner named Shadow.

He sleeps on the foot of my bed every night.

He chose me when I was alone.

I will choose him for the rest of his life.

If this story moved you, follow the page — there are more like Kestrel and Shadow and Diesel I haven’t told yet.