William Heirens was known as the "Lipstick Killer" who was accused of murdering three women in Chicago in the 1940s. He had a difficult childhood with parents who fought frequently. As a teenager, he began committing burglaries as a way to escape his home life. He was eventually apprehended for a burglary and accused of the murders, though he still claims innocence. The crimes were notable for messages left written in lipstick at one scene and the dismemberment of six-year-old Suzanne Degnan. His interrogation methods, including alleged use of truth serum, remain controversial.