Murder on Hillside Avenue

A quiet street. A respected family. A home that looked picture-perfect from the outside.

On November 9, 1971, everything changed inside a mansion on Hillside Avenue in Westfield, New Jersey. Behind closed doors, John List carried out one of the most calculated family murders in American history—then vanished without a trace for nearly two decades. He left behind five victims, a chilling confession, and a mystery that stunned the nation.

In this episode of Case Files After Crime, we unravel the meticulous planning, the haunting crime scene, the month-long silence before anyone realized what had happened, and the nationwide manhunt that finally ended 18 years later.

Some crimes happen in a moment of rage. This one was planned with terrifying precision.

Listener discretion is advised. This episode contains discussions of murder, family violence, and disturbing crime scene details that may not be suitable for all audiences.

Transcript

SPEAKER_00 0:03

Some houses hide secrets. But this one hid five bodies. For nearly a month, nothing seemed out of place. The lights were off, the curtains stayed closed, and the neighbors assumed the family had gone away. But behind the front door of a home on Hillside Avenue, an entire family had been dead for weeks. And the man who knew exactly what happened was nowhere to be found. You're now clocked into murder on Hillside Avenue.

SPEAKER_01 1:05

Yeah, she digs where the truth don't shine. Cold lights, street lights, and blue line. That's me, I she's on that timeline.

SPEAKER_00 1:19

Inside the home were five members of the Liz family, all shot to death. John's wife Helen, his mother Alma, and his three children, Patricia, John Jr., and Frederick. They died inside the house they called home, where meals were shared and memories were made. The bodies weren't hidden. Some were carefully positioned. The lights were off, religious music still playing throughout the house. Then there was the family photographs. At first glance, it looked untouched until one detail stood out. John had carefully cut himself out of the family photographs, as if he could erase himself from the life he had destroyed. Then he disappeared for nearly 18 years. But no matter how far he ran, he could never escape what happened inside that house. Every morning, John got dressed for work, kissed his family goodbye, and they believed he would be home for dinner. But he already knew the day would end very differently. Because there was one problem. He no longer had a job. Months earlier, he lost his position as an accountant. Instead of telling his family, he built a life around a lie. Every day became an act. He wandered from train stations to libraries, all to keep his family from discovering the truth. Meanwhile, the bills continued to pile up, the mortgage fell behind, his savings disappeared. Every day, the pressure grew heavier. To the outside world, the Liszt family looked unchanged. Behind the routine, everything he had hidden was closing in on him. Then came the explanation that would leave people searching for answers. In a five-page letter to his pastor, he claimed and believed his family was drifting away from God. He later said he feared they would lose their souls. Rather than admit he lost everything and asked for help, he convinced himself there was only one way to save them. It was an explanation many people still struggle to understand today. On November 9th, 1971, John Liszt carried out the plan he had been quietly building for months. By the end of the day, five members of his family were dead. Most killers run from what they've done. Not John List. He made himself a sandwich. After murdering his family, he sat in the kitchen and ate. Then he disappeared, not for days or weeks, but nearly 18 years. During that time, he changed his name, found another job, remarried, and built an entirely new life. It was as if John Liszt had vanished without a trace until May of 1989. One television broadcast changed everything. America's Most Wanted aired an age-progressed image of John Lis. Someone recognized him. The man living as Robert Clark was John Lisp. After nearly 18 years, the life he had built under a different name finally came to an end. John Lis changed his name, he built a new life, and for years he believed he left Hillside Avenue behind. But it turns out a sandwich couldn't satisfy the one thing he could never outrun. His past.