Ronald Gene Simmons, Sr. (July 15, 1940 – June 25, 1990) was an American spree killer, who killed 16 people over a week-long period that started December 28, 1987, by shooting and/or strangling, primarily in Russellville, Arkansas and all occurring in Arkansas. A retired military serviceman, Simmons murdered 14 members of his family, including a daughter he had sexually abused and the child he had fathered with her, a former co-worker, a stranger, and wounded four others.