TECH
05/22/2010 05:12 am ET Updated May 25, 2011

William Melchert-Dinkel, Internet Predator Behind Suicide 'Pacts,' Unmasked By Sleuth

Mark Drybrough received his final e-mail at 10.32am. It asked: "Are you all right?" Seconds later he switched off his computer, walked upstairs to his bedroom and hanged himself from a decorator's ladder.

When Mr Drybrough's sister later read through the months of e-mails and chat-room posts stored on the computer, it appeared that the message was the culmination of a suicide pact with a young female nurse.

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