Active Shooter at Oklahoma Restaurant Killed by 2 Civilians

A man walked into an Oklahoma City restaurant Thursday night and opened fire with a handgun wounding three people. He then left the restaurant and was shot and killed by two civilians.

Police say Alexander C. Tilghman, 28, of Oklahoma City, walked into Louie's Grill & Bar at Lake Hefner at about 6:30 p.m. Thursday and fired several rounds striking Natalie N. Giles, 39, and two unidentified girls.

Tilghman then walked outside the restaurant, where he was shot and killed by Juan Carlos Nazario, 35, and Bryan Wittle, 39, NewsOK reports.

Investigators say that prior to the shooting Tilghman posted  videos on YouTube  in which he said he was under demonic attack.

In a video dated April 27, Alexander Tilghman sits alone in a room and speaks directly to a camera, saying his life is in danger and he is under "hardcore demonic attack." Tilghman says he constantly hears cracks and booms throughout the house. He asks for "real people" to get in contact with him.

In a comment on the video, Tilghman pleads for help, NewsOK reports.