Bureaucratic errors can be deadly. Devin Kelley, the suspected shooter in the Texas church massacre that killed 26 people Sunday, shouldn’t have been able to buy a gun due to his criminal record. But the Air Force, which discharged Kelley for assaulting his wife and child, failed to record that information in the correct database. As a result, Kelley passed federal background checks and legally purchased guns — including a semi-automatic rifle. According to a police report, he’d also escaped from a mental hospital in 2012 after being caught trying to sneak guns onto an Air Force base.