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Robert Shulman, a postal worker from Hicksville, N.Y.,
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Robert Shulman, a postal worker from Hicksville, N.Y., was convicted of murdering five prostitutes between 1991 and 1996, the year when he was arrested. He died in prison in 2006 of natural causes. (Sept. 3, 1998)(Credit: Newsday / John H. Cornell Jr. )

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Long Island and U.S. serial killers

They have inspired fear, inflicted unimaginable horrors and left staggering numbers of dead in their wake. They are known by a host of alliterative nicknames: Jack the Ripper, The Boston Strangler, The Zodiac Killer, The Green River Killer, The Night Stalker, The BTK Killer, Son of Sam. They are serial killers, murderers who authorities say kill again and again. And again.--John Valenti