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.
"The Serial Killer's Apprentice" — movie produced in USA and released in 2025. It is a feature-length film with a runtime of 1h 28min. "The Serial Killer's Apprentice" is currently available for rent and to buy on Apple TV and to stream on Amazon Prime ⎥ Discovery+. Click on a playlink to watch it now!
Where to Watch The Serial Killer's Apprentice online
