🎙️ Criminal Mischief

The Back Staircase: The Death of Kathleen Peterson

A fall, a secret, and a story that refused to stay buried.

In this episode of Criminal Mischief, host Carolyn Ossorio revisits one of the most haunting and polarizing cases in modern true crime — the death of Kathleen Peterson, and the man who claimed it was an accident: her husband, Michael Peterson.

When Kathleen’s body was found at the bottom of a staircase in their North Carolina mansion in December of 2001, the scene was catastrophic — blood spattered across the walls, head injuries so severe investigators couldn’t believe they came from a fall. What followed would become one of the most debated cases in American criminal history.

Michael Peterson’s version of events changed under scrutiny. First an accident, then a mystery, then something stranger. A novelist, a veteran, and a husband with more secrets than anyone expected. And when prosecutors unearthed the death of another woman — one connected to Peterson years earlier — the story twisted into something almost unbelievable.

Through trial transcripts, forensic reports, and archived interviews, Criminal Mischief examines the inconsistencies, the media frenzy, and the theories that still divide both experts and audiences more than two decades later.

Was Kathleen’s death the result of a tragic fall? Or was it — as some investigators believe — murder disguised as misfortune?

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