back in texas, authorities identifying 42-year-old keith thomas kanaanen as the shooter. they say he has had run-ins with law enforcement in the past but they have not figured out a motive for this attack. >> today evil walked boldly among us. let me remind you, good people raised up and stopped it before it got worse. >> reporter: video shows that it was 10:50 sunday morning when the shooter entered the church. >> i mean, the shooter was sitting next to my mother. she knew from growing up in the church that this -- she didn't recognize this gentleman. >> reporter: over 200 parishioners were in attendance, including 71-year-old jack wilson, a reserve deputy sheriff. >> we noticed that his right hand was visible but his left hand never was visible. so i'm assuming at this point that the shotgun was, you know, was in his pocket all the way up under his armpit, and he's holding it in place with his left hand. >> reporter: in the video you see the gunman wearing a dark hoodie sitting in the back pew. he gets up, walks to the back, and appears to say something to a deacon, the