Harold Shipman was arrested on 7 September 1998 after police investigated the death of his patient Kathleen Grundy, who had left him £386,000 in a will that turned out to be forged. The clumsy fake unravelled quickly: a Brother typewriter matching the one used to produce the document was found in Shipman's possession, and Grundy's own family, alarmed that their mother would never have cut them out, had already raised suspicions with a solicitor.
The arrest opened the door to a far larger inquiry. Detectives uncovered a pattern of lethal diamorphine injections administered to elderly patients under his care, alongside falsified medical records designed to make the deaths look natural.
Shipman was eventually linked to the deaths of at least 215 patients over more than two decades, making him one of the most prolific serial killers in British history.
