White caps was a general term used to refer to several groups operating primarily in southern Indiana in the late 19th century. They became common in the state following the American Civil War and lasted until the turn of the 20th century. They lynched numerous people; in many cases, the victims were either criminals or suspected criminals, but often the victims were simply people of whom the whitecappers disapproved. Several members of the Reno Gang were lynched in 1868, causing an international incident. Some of the members had been extradited to the United States from Canada and were supposed to be under federal protection. Lynchings continued against other criminals, but when two possibly innocent men were killed in Corydon in 1889, Indiana responded by cracking down on the white cap