Who was Jack the Ripper? Over a century later, the world's most famous serial killer remains a haunting mystery. In 1888, the Whitechapel district of London was terrorized by a shadowy figure who brutally murdered at least five women—Mary Ann Nichols, Annie Chapman, Elizabeth Stride, Catherine Eddowes, and Mary Jane Kelly [citation:5][citation:8]. The killer's savage mutilations suggested anatomical knowledge, leading police to suspect a butcher, surgeon, or slaughterhouse worker [citation:1][citation:8]. The infamous "Dear Boss" letter, likely a journalist's hoax, gave the killer his enduring nickname [citation:1]. Over 70 suspects have been named over the years, from Aaron Kosminski and Montague Druitt to a royal conspiracy involving Queen Victoria's grandson [citation:5][citation:6][citation:9]. This is the case that birthed the modern true crime genre—a legacy of fear and fascination that remains unsolved.