Question: The murderer in the investigation the documentary The Witness covers was sentenced to what official punishment?
Sentence (from "Leslie Van Houten"): Leslie Louise Van Houten (born August 23, 1949) is an American murderer serving a life sentence in relation to the 1969 killings of Leno and Rosemary LaBianca, when Van Houten was 19 years old.
Relevant evidence: No