The Serial Killer's Apprentice Backdrop

The Serial Killer's Apprentice

⭐️ 6.6 | 0 min | Documentary , Crime | August 17th, 2025

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.

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  • HBO Max
The Serial Killer's Apprentice

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Katherine Ramsland

Katherine Ramsland

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Elmer Wayne Henley

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