Schedule for Oxygen True Crimes Archive

Mark of a Serial Killer: Deadly Summer

Mark of a Serial Killer: Deadly Summer

In the summer of 1976, the NYPD are chasing a man shooting at couples in parked cars with a gigantic, .44 caliber handgun he taunts the city with terrifying letters until police get a lead about a suspect who has shot a neighbor's dog.

2026-01-30 09:59:00 +0000 UTC2026-01-30 10:48:00 +0000 UTC(49m)