One of the most prolific serial killers in criminal history, Dr Harold Shipman used his reputation as a "good doctor" to target those who'd trusted him to treat them in their hour of need. The twisted GP often targeted older women in the small Greater Manchester town of Hyde, who were said to "adore" him, with an extraordinary 80 per cent of Shipman's victims being female pensioners. Rather than providing them with care, Shipman instead injected fatal doses of poison into many of these patients,