An American Murder Mystery: The Staircase (2018... May 2026

Investigators found an extraordinary amount of blood, which they believed was inconsistent with a simple accidental fall.

Maintained that Kathleen fell down the stairs, perhaps after consuming alcohol and Valium. Key Episode Highlights

### On December 9, 2001, novelist Michael Peterson called emergency services to report finding his wife, Kathleen, unresponsive at the bottom of a back staircase in their Durham, North Carolina, home.