The gunman who killed 26 people at a Texas church on Sunday had previously threatened his superiors in the Air Force, Click2Houston reported Tuesday. Devin Kelley reportedly escaped from a New Mexico behavioral center about five years ago and was later picked up by police at a bus terminal. Kelley “was attempting to carry out death threats” against his military superiors, according to an incident report. The incident, which was reportedly submitted to the FBI’s National Crime Information Center database, happened a few months after Kelley attacked his wife and stepson. Kelley was court-martialed for the assault in 2012 and later discharged from the Air Force.