Daingerfield church shooting
The Daingerfield church shooting was a mass murder that occurred at the First Baptist Church in Daingerfield, Texas, United States on June 22, 1980. Alvin Lee King III, 45, a former high school teacher, armed with an M1 carbine, two revolvers, and a scoped Colt AR-15 SP1 rifle, killed five people and wounded 10 others, after members of the church had declined his request to appear as character witnesses in a trial in which he was charged with raping his daughter.
Source: Wikipedia — Daingerfield church shooting (CC BY-SA 4.0)