John Etter Clark (March 29, 1915 – June 3, 1956) was a provincial politician, teacher and farmer from Alberta, Canada. He was a member of the Legislative Assembly of Alberta from 1952 until committing one of the deadliest mass murders in Alberta history and killing himself.John Etter Clark was born in Stettler, Alberta in 1915. He became a part-time school teacher and a farmer. Clark inherited the 1,000 acres (4.0 km2) farm founded by his father. He married Margaret Dinwoodie in 1947 and they had four children. Wikipedia