Former boxer Samuel Little says he's killed 90, could be most prolific serial killer in US history

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Convicted murder Samuel Little has confessed to killing 90 people since the 1970s, investigators said on Thursday.

Convicted murder and former boxer Samuel Little has confessed to killing 90 people since the 1970s.

If the number of killings Little claims to have committed proves true, it would make him one of the most prolific killers in U.S. history.
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