About This Episode
Morbid, one of the world's most widely listened true crime podcasts, has re-released its episode on Mary Vincent — a survivor whose story has left a permanent mark on American criminal history. At just 15 years old, Mary endured an attack of almost unimaginable brutality, and her fight for justice exposed a legal system that failed her in the most profound way.
Who Was Lawrence Singleton?
Lawrence Singleton was an American merchant seaman who, in September 1978, offered teenage hitchhiker Mary Vincent a ride along Interstate 5 in California. What began as a seemingly innocent lift ended in extreme violence. Singleton raped Mary, severed both of her forearms with a hatchet, and threw her into Del Puerto Canyon near Tracy, California — leaving her for dead.
Mary survived by crawling up the canyon wall and flagging down a passing car on the highway — holding up the stumps of her arms to slow the bleeding. Her survival is still described, to this day, as nothing short of miraculous.
A Justice System That Failed Her
What followed Singleton's arrest sparked widespread public outrage. Despite the extreme violence inflicted on his victim, Singleton was sentenced to just eight years in prison — and was released after fewer than three years due to California's early parole rules. When he walked free in 1987, communities across the state protested, and authorities struggled to find anywhere willing to accept him as a resident.
The case became one of the earliest and most frequently cited examples in the United States of the need for tougher sentencing laws for rapists and violent criminals, directly inspiring legislative changes in California. american true crime cases
Singleton's Final Chapter
In 1997, Lawrence Singleton was arrested in Tampa, Florida, for the murder of Roxanne Hayes, a woman with whom he had been living. He stabbed her to death in his own home. This time, the justice system handed down a death sentence. Singleton was executed by lethal injection on January 30, 2001, at the age of 73.
For many who had followed the case, the sense of justice was deeply conflicted: it had taken another murder and another victim before Singleton was finally stopped for good. death penalty USA crime
Mary Vincent's Legacy
Mary Vincent has never retreated from public life. For years she has spoken openly about her attack, becoming a global symbol of survival and resilience within the true crime community. She was fitted with prosthetic arms and rebuilt her life — something she has described as a deliberate act of defiance: refusing to let Lawrence Singleton have the final word over her existence.
Her story is also a powerful example of how the true crime format can amplify victims' voices rather than centering solely on perpetrators. The Morbid episode places Mary's perspective and strength at the heart of the narrative — not merely Singleton's actions. true crime podcast guide
Why Morbid Re-Released the Episode
Morbid, hosted by Alaina Urquhart and Ash Kelley, is known for returning to cases that deserve renewed attention. The 2026 re-release of the Mary Vincent episode signals that her story continues to resonate with listeners around the world — not only as a shocking crime, but as a testament to what human beings can survive, and how justice systems can and must do better. For true crime listeners following international cases, Morbid remains one of the genre's defining reference points.
