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
Stream, buy or rent this movie from the providers below.
| Stream | |
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 | HBO Max |
 | HBO Max Amazon Channel |
 | Discovery+ Amazon Channel |
 | Discovery + |
| Buy | |
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 | Amazon Video |
| Rent | |
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| Not available |