Investigators are trying to determine the motive behind the deadly church shooting in White Settlement, Texas Sunday. The Dallas Morning News writes:

The FBI said Sunday evening that the gunman had been arrested in different jurisdictions but declined to go into detail about any charges he’d faced. Although the man had roots in the area, it appears he may have been transient.

Two people and the suspect were killed. The Fort Worth Star-Telegram says:

The gunman was being watched by members of the church security team because of his appearance, said Mike Tinius, a church elder. Tinius would not elaborate what it was about the gunman’s appearance that attracted the attention of the church security personnel.

“By the sequence of events it should be assumed that he came in with an idea,” Tinius said.

It was a member of that security team who shot and killed the gunman. The shooting was caught on a livestream video feed inside the church. CBS This Morning has the video and more on what happened above.