When a woman vanishes, police find bodies along Long Island's shore. Years of dead ends and overlooked victims stall the case until a new task force spots a suspect hiding in plain sight. With trial looming, insiders and families speak.
Killing Grounds: The Gilgo Beach Murders (Season 1)
Part One (Episode 1) 7.0
Air date: 2026-04-21
Runtime: 47 min
Overview: While searching for a missing woman on Long Island, police uncover a hidden burial ground. As families demand answers, investigators begin to realize a serial killer may have been operating unnoticed for years.
Part Two (Episode 2) 7.0
Air date: 2026-04-21
Runtime: 38 min
Overview: After years of stalled leads and system failures, a new task force reopens the Gilgo case, unearthing phone records, witness accounts, and vehicle clues that all point to a suspect who's been hiding in plain sight.
Part Three (Episode 3) 7.0
Air date: 2026-04-21
Runtime: 42 min
Overview: A year of surveillance and clandestine DNA sampling leads to Rex Heuermann's arrest. As investigators dig deeper, other victims are connected as terrifying new evidence is revealed.
Part Four (Episode 4) 8.0
Air date: 2026-04-21
Runtime: 45 min
Overview: A disturbing document recovered from Rex Heuermann's computer reveals what looks like a detailed murder plan. Investigators add victims and trace links far beyond Long Island. Ahead of the trial, a court ruling reveals the path forward for the case.
