Coley McCraney, 45, faces murder and rape charges for the shooting deaths of Tracie Hawlett and J.B. Beasley.
Makers of "13: The Search for Leigh Occhi" delve into the 1992 cold case.
"I can't help feeling that somewhere, in her final pages, she left enough clues ... to put California's worst serial killer behind bars," widower Patton Oswalt said.
The hijacker took $200,000 in cash, jumped out of a passenger jet and vanished.
The body of Natalie Perez, 21, was found in an abandoned Cleveland home over the weekend.
Was he poisoned or did he die accidentally? Why were the labels removed from his clothes? Was he a secret agent or a jilted lover? Intriguingly, a slip of paper was found in one of his pockets with the printed words "Tamám Shud," meaning "ended" or "finished" in Persian.
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Gary Sandford Raub, of Seattle, Wash., was arrested Monday afternoon after police linked his DNA to the 1976 murder of 70