Serial killer Samuel Little's depravity is matched only by his prodigious memory.
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Little, a 79-year-old California inmate, has been pronounced by the FBI the most prolific serial killer in U.S. history.
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He has confessed to 93 slayings committed across the country between 1970 and 2005, recounting the crimes with astonishing, near-photographic detail. He has even drawn color portraits in prison of dozens of the women he strangled.
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His case, featured on "60 Minutes" on Sunday, has offered a frightening look inside the mind of a killer and the wrongheaded assumptions on the part of law enforcement that enabled him to escape justice for so long.
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