Gerard John Schaefer was an American serial killer, born on March 25, 1946, in Wisconsin. He is known for the abduction, rape, and murder of several young women in the early 1970s in Florida. Schaefer worked as a police officer, which allowed him to exploit his position to lure victims. Schaefer was arrested in 1972 and later convicted of multiple murders. He was sentenced to life in prison, where he continued to confess to additional crimes. His case has been studied in criminology and psychology, highlighting the complexities of criminal behavior and the challenges of law enforcement in dealing with serial offenders.