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Alcala has been convicted of killing seven women in the 1970s.
• 12 min read
6:41
A missing woman's cold case and a killer's appearance on 'The Dating Game': Part 1
Christine Thornton, described by her sister as a free spirit, went missing in the summer of 1977. Clues about her disappearance wouldn’t be uncovered until 40 years later.Bettmann Archive via Getty Images
When “The Dating Game” host Jim Lange introduced Rodney Alcala as Bachelor Number One, a successful photographer, he didn’t know that the man had already murdered at least five women and been charged with the attempted murder of a little girl.