Killing Grounds: The Gilgo Beach Murders - Season 1

Killing Grounds: The Gilgo Beach Murders - Season 1

Season 1

Network
Episodes4
DatesApr. 22, 2026 - Apr. 22, 2026

Episodes

Part One
Season 1Episode 147 min

Part One

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.

Apr. 22, 2026
Part Two
Season 1Episode 238 min

Part Two

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.

Apr. 22, 2026
Part Three
Season 1Episode 342 min

Part Three

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.

Apr. 22, 2026
Part Four
Season 1Episode 445 min

Part Four

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.

Apr. 22, 2026

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