New York Most Brutal Cold Case – Solved After 61 Years by DNA

The Handkerchief: Solving Albany’s Oldest Murder Mystery

I. The Woman Who Did Everything Right

On a quiet street in Albany, New York, Katherine Blackburn lived a life so orderly that neighbors could set their clocks by her habits. Every Sunday morning, she was at St. Joseph’s Roman Catholic Church by 6:00 a.m., her porch was swept every Saturday evening, and she worked the same job at Mohawk Brush Company for thirty years. Her house was spotless, her bills paid, her routine unwavering. Katherine, known as Kate, was a woman defined by discipline, faith, and the principles that guided her every decision.

Born on March 1, 1914, to a family of Polish immigrants, Kate grew up in a household where Catholicism was not just a belief, but a way of life. She had one brother and five sisters, and their faith shaped every relationship, every corner of their world. Kate’s devotion became both her greatest strength and her most painful burden.

In 1938, at age 24, Kate married Jesse Blackburn. The ceremony was at city hall, not a church—Jesse had been married before, and Catholic rules forbade a church wedding. This compromise haunted Kate; she never divorced Jesse, believing her vows were binding before God, even as Jesse’s life diverged from hers. He moved overseas for military service, while Kate remained in Albany, working her way up from the factory floor to forewoman. Over the years, Jesse wrote occasionally, sometimes his girlfriends wrote too. When Jesse needed money, Kate sent it. She was loyal, bound by principle, even when it hurt.

But Kate also kept a secret—a relationship with Ben Mascin, a produce seller who had survived polio. For sixteen years, Ben was part of Kate’s life, but she never told her family. Ben was Jewish, Kate was Catholic. In 1960s Albany, that difference mattered. Kate was still technically married, and for her, being involved with another man was a sin, but so was divorce. She lived between two worlds, building invisible bridges to keep them close, but never letting them touch.

II. The Last Routine

By 1964, Kate was fifty years old, living alone in a two-family house at 117 Colony Street, a working-class neighborhood in north Albany. She rented the upstairs apartment for extra income. Her neighbors liked her—she was quiet, private, and reliable. Her routines were so predictable that any break in them signaled trouble.

On Saturday, September 12, 1964, Kate worked a half-day at the brush factory and returned home around noon. Her upstairs tenants had recently moved out, and Kate had been advertising the apartment in the newspaper. She told friends she’d found a new tenant—a short man in his fifties, who paid a $10 deposit and planned to move in October. But something about the man unsettled Kate. He gave her an address in a nicer part of Albany, smelled of alcohol, and his story didn’t add up. Three days before her death, Kate asked someone to drive her to the address to check if it was real. It was, but too dark to confirm the exact house.

Between 5:00 and 6:00 p.m. that Saturday, neighbors saw Kate sweeping her porch—her last routine. She spoke to a sister on the phone, declining dinner because a tenant was coming to see the apartment. That call was the last time anyone heard Kate’s voice.

III. The Discovery

Sunday morning, Kate missed church. She wasn’t at 6:00 a.m. mass, nor at 8:00 a.m. For a woman who never missed church, this was unheard of. Neighbors noticed she hadn’t hung laundry or burned trash—her usual Sunday chores. By Monday, her friend Marie Hogan arrived for their daily carpool. Kate didn’t come out. Marie knocked, no answer. Worried, she called Kate’s niece, Sandy.

Sandy, just nineteen, decided to check on her aunt. She brought Kate’s sister Anna. They knocked, threw pebbles at windows—nothing. The cellar door was unlocked; they entered through the basement and found the apartment empty. Upstairs, the front door was open. There, on the living room floor, was Kate.

Sandy ran to call an ambulance, but the paramedics didn’t try to save her—they called the police. Katherine Blackburn had been murdered.

IV. The Crime Scene

What police found was one of Albany’s most disturbing crime scenes. The attack was not sudden rage, but calculated and methodical. The killer used Kate’s own home, her kitchen, her belongings. Blood evidence showed the attack began in the entryway between the upstairs kitchen and back bedroom. Kate had brought the man upstairs to show the apartment. While she fetched keys from her downstairs bedroom, the killer likely grabbed a small hammer or meat tenderizer from her kitchen. Upstairs, he struck Kate on the back of her head, fracturing her skull. Her fingers were broken—her last act was reaching to protect herself.

The killer went downstairs, selected a knife, returned, and stabbed Kate. She bled to death on the floor. He tried to clean up, dragging her body into the living room, using sheets and pillows from her own bed. He attempted to erase evidence, but failed.

He then did something chilling: he found Kate’s rent receipt book and tore out the last written page and four pages behind it, erasing his name from the only written record connecting him to the house. But he didn’t realize that writing hard on paper leaves impressions on the sheets below. Those faint traces would eventually give investigators a name.

Albany police solve 61-year-old murder of Catherine Blackburn through DNA  and genealogy

V. The Secret Revealed

Kate’s family had no idea about her relationship with Ben Mascin. At her funeral, attended by over a thousand people, the Mohawk Brush Company shut down so everyone could be there. Police watched from across the street, studying faces, wiring her casket with a microphone, hoping the killer might whisper something. He didn’t.

But the family learned Kate’s secret: she had been in a relationship for sixteen years. Ben, devastated by her death, told police he’d come by her house Saturday night and Sunday, called her ten times, but never saw her alive again. He cooperated fully; he wasn’t a suspect, just a man who had lost the woman he loved.

After the burial, Sandy and her cousin Teresa returned to 117 Colony Street. Barely twenty, they cleaned their aunt’s blood from the apartment floor—not because anyone asked, but because they couldn’t bear their mother seeing it.

VI. The Investigation Begins

The investigation was massive. Detectives chased leads across states. They considered Albert DeSalvo, the Boston Strangler, and Lemu Smith, a local killer known for similar crimes. Neither was connected. The name lifted from the receipt book impressions was Robert Broadhead or something close. Experts agreed on Robert; the last name was unclear. The address—369 Second Avenue—was a dead end. Every lead collapsed. The killer was a ghost.

Lieutenant Edmund “Ted” Flint refused to let go. He kept Kate’s file on top of his cold case stack for years, working it until retirement, then passing away without ever knowing who killed Kate Blackburn.

Days became months, months became years, years became decades. Kate’s house was demolished, the neighborhood changed, detectives grew old, some died. But they never forgot her, and neither did Sandy.

VII. The Cold Case Awakens

In August 2018, detective Melissa Mory of Albany’s Forensic Investigation Bureau heard about Kate’s case at a party with retired officers. For many, Kate Blackburn was the case that haunted them most. Melissa decided to pull Kate’s file. What she found stunned her: the evidence from 1964 was all still there—clothing, sheets, knives, a handkerchief found under Kate’s body, all preserved.

Those original detectives, working decades before DNA was a concept, had worn gloves, bagged and labeled everything with extraordinary care. They unknowingly left a gift for the future.

Melissa discovered something else: Kate’s niece Sandy was her neighbor. Sandy, now in her seventies, had never stopped fighting. She reached out to the Cold Case Analysis Center at the College of St. Rose, launched by Professor Christina Lane. The center contacted Albany PD, and Melissa was assigned to lead the investigation.

VIII. Science and Perseverance

Melissa and Dr. Lane explored every avenue for re-examining the evidence. They hit walls, faced rejection, but persisted. Melissa later said, “Working a cold case is like a research project. Long stretches of nothing. Lots of bad news. Lots of rejection.” But they found the right piece of evidence and the right lab—the key was the handkerchief.

In 2023, Albany PD partnered with Othram, a forensic DNA company in Texas. A nonprofit called Season of Justice provided funding. Othram used a specialized sterile wet vacuum to extract DNA from the porous surface of the sixty-year-old handkerchief. They built a comprehensive DNA profile using forensic-grade genome sequencing, and handed it to the FBI.

The FBI’s genetic genealogy team ran it against databases, using the same technique that caught the Golden State Killer. They found matches—not to the killer himself, but to his relatives. Working backward through family trees, investigators narrowed their focus to one man, who had died in 1998, never a suspect.

1964 slaying of Catherine Blackburn finally solved thanks to DNA

IX. The Grave and the Answer

Police reached out to his surviving relatives. They cooperated fully, providing DNA samples. The results confirmed investigators were on the right track, but they needed absolute proof.

On September 15, 2025—61 years and one day after Kate’s body was discovered—investigators gathered at Albany Rural Cemetery. With a court order, they opened a grave, took samples from a femur and arm bone, and sent them to the lab. Weeks later, the results came back: it was a match.

On October 8, 2025, Albany Police Chief Brendan Cox announced the killer’s name: Joseph Stanley Noacowski, born in Albany, August 1931, 33 years old when he murdered Kate, dead since 1998.

X. The Man Behind the Crime

Noacowski’s criminal history revealed a pattern. At eighteen, he was arrested for three burglaries. After the Army, he was arrested at Union Station carrying a suitcase full of weapons, a loaded pistol, switchblades, a crowbar, skeleton keys, handcuffs, glass cutters, and floor plans of private homes, along with newspaper clippings tracking when wealthy families were leaving on vacation. He was not a petty thief, but a calculated predator.

In 1973, nine years after Kate’s murder, a 74-year-old woman in Schenectady survived a hatchet attack in her own bed. The attacker left behind a gold dental crown and a glove. Days later, Noacowski crashed his car drunk; police found a bloodstained hatchet inside. The crown matched his teeth, the glove matched the scene. He pleaded guilty, sentenced to three to fifteen years, released in 1980. He disappeared off the radar, died in 1998, never connected to Kate Blackburn until a handkerchief and a DNA lab revealed the truth.

XI. The Press Conference

At the press conference, Sandy Carmichael, Kate’s niece, stepped to the microphone. She was 81, had been 19 when she found her aunt. Sixty-one years of carrying that image, sixty-one years of not knowing. She said evil entered her aunt’s house and changed their lives forever. They prayed for this day and thanked everyone who made it possible.

Kate’s other niece, Mary Anne Simmered, asked a question that silenced the room: “Do you believe in miracles?” She said her family had received one. After sixty-one years, they finally knew who murdered Katherine Blackburn.

Chief Cox told the room, “There’s no such thing as a cold case.” What stayed with him was not the brutality, not even the DNA breakthrough, but the people who refused to let Katherine Blackburn become a forgotten name in a dusty file. The detectives in 1964 who preserved evidence they couldn’t use yet. Ted Flint, who kept her file on top of his pile until retirement. Melissa Mory, who heard about the case at a party and thought, “I can do something.” Dr. Lane and Chris Kungl, who built an academic center around the idea that forgotten victims deserve answers. The scientists who pulled DNA from a 60-year-old cloth and turned it into a name. And Sandy, who was 19 when she walked into that apartment, who cleaned her aunt’s blood so her mother wouldn’t see it, who never stopped asking, who picked up the phone one more time in 2018, who was 81 when the answer finally came.

XII. Remembering Kate

Katherine Blackburn lived by her principles, even when they trapped her. She went to church when it was easy and when it wasn’t. She stayed married to a man she didn’t love because she believed it was right. She kept the man she did love a secret because she couldn’t bear to disappoint her family. She opened her door to a stranger because she was a landlord trying to rent an apartment. That’s all. And for that, she paid with her life.

Joseph Noacowski died in 1998 without ever being arrested for Kate’s murder. He never sat in a courtroom, never faced a jury. In every traditional sense, he escaped justice. But he didn’t escape the truth, because sixty-one years later, his bones were pulled from the ground and his name was spoken out loud—not as a man, but as a monster. And somewhere in that room, an 81-year-old woman who had spent her entire life waiting finally exhaled.

Kate was buried at St. Agnes Cemetery in 1964. Noacowski was buried at Albany Rural Cemetery. Just a few miles apart, the victim and the man who destroyed her, separated by a short drive and six decades of silence. That silence is over.

XIII. The Legacy of Cold Cases

Before you go, consider this: Noacowski was a man who attacked women living alone, carried weapons and burglar tools everywhere, and studied his targets. Police believe it’s very possible Kate wasn’t his only victim. How many other cold cases are sitting in evidence rooms right now, waiting for the right technology to catch up? How many killers are out there because a piece of cloth hasn’t been tested yet?

And Kate—she kept her love for Ben a secret for sixteen years, afraid of what her family would think. Do you think they would have accepted it, or were those times just too different?

XIV. Epilogue

Kate deserves to be remembered, not just for how she died, but for who she was. A woman of faith, principle, and quiet courage. Her story is a testament to the power of persistence, the advances in forensic science, and the enduring impact of truth. It’s a reminder that every cold case deserves answers, and that sometimes, the most ordinary piece of evidence—a handkerchief—can change everything.