The murder of Glenn Kopitske (July 24, 1966 – July 31, 2003) occurred in Wisconsin on July 31, 2003 when 37-year-old Kopitske was killed by 17-year-old Gary Hirte. Hirte initially admitted to killing Kopitske "to see if he could get away with it"; however, he later claimed to have experienced temporary insanity that resulted from his rage after a supposed homosexual encounter with Kopitske.