Peter Sutcliffe used a hammer and a knife to kill prostitutes and other unfortunate females. In his 26-hour confession to police, he said God had told him to do it in his twenties, when he was a gravedigger. They believed him a paranoid schizophrenic but the presiding judge wanted a jury to make that decision. The trial of the sanity of Peter Sutcliffe lasted a fortnight and it then took the jury six hours to decide... Read the full Yorkshire Ripper Crime File
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