Question: what gun that was also a .30 caliber semi-automatic carbine was used in the Daingerfield church shooting? 
Sentence (from "M1 carbine"): The M1 carbine (formally the United States Carbine, Caliber .30, M1) is a lightweight, easy to use, .30 caliber (7.62 mm) semi-automatic carbine that was a standard firearm for the U.S. military during World War II, the Korean War and well into the Vietnam War.
Relevant evidence: Yes