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The Serial Killer's Apprentice
Dr. Katherine Ramsland interviews Elmer Wayne Henley, the sole survivor of the 1973 Houston Mass Murders, to unravel his chilling journey from manipulated teen to convicted killer — and the terrifying truth behind the line between victim and predator.
Where to watch
HBO Max Amazon Channel
Discovery+ Amazon Channel
HBO Max
Discovery +Availability by JustWatch · All options on TMDB
Cast
Wayne HenleyDetails
- Release date
- August 17, 2025
- Runtime
- 1h 23m
- Original language
- English
- Studios
- Wolf Entertainment, Good Caper Content, Investigation Discovery
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