The Serial Killer's Apprentice

The Serial Killer's Apprentice — Plot

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.

• Release date
• August 17, 2025
• Runtime
• 83 min
• Genres
• Documentary, Crime

The Serial Killer's Apprentice — Cast

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Katherine Ramsland Self Wayne Henley Self (voice)