37 years unsolved
For anyone who enjoyed the TV comedy "Hogan's Heroes" in the 1960s, the murder of Bob Crane was especially heartbreaking.
Crane played a wisecracking Colonel in the TV series about a Nazi POW camp.
After the show was canceled, Crane was performing in a theater production in Scottsdale, a suburb of Phoenix. On June 29, 1978, he was found dead in his apartment, the bed soaked with blood. His skull had been crushed and an electrical cord was wrapped around his neck.
Prosecutors believe his head wounds were caused by a camera tripod, although the murder weapon was never found.
Crane was 49.
A longtime friend of Crane's, John Henry Carpenter, was charged with first-degree murder in 1992. Prosecutors argued that Carpenter committed the murder several years earlier out of fear that their friendship would end, putting a stop to a parade of willing women.
Carpenter was acquitted in 1994, and the case remains unsolved.
Crane’s killing was the subject of the 2002 movie "Auto Focus."
- Newspaper clipping: Carpenter acquitted