Jack the Ripper was a serial killer active in London in 1888 who murdered and mutilated several women. He gained notoriety for slashing throats, mutilating bodies, and removing organs from victims between August and November 1888. Police investigated multiple suspects but were unable to make an arrest due to limitations of forensic technology at the time. Suspects included Montague John Druitt, George Chapman, Sir John Williams, and James Maybrick.