Nearly a month after disgraced former airman Devin Patrick Kelley massacred 26 worshipers in a Texas church with guns he was able to buy legally but shouldn’t have been, the Department of Defense has published a bleak audit of the U.S. armed forces’ compliance with criminal reporting procedures: Nearly a third of those service members convicted of military crimes that should have barred them from buying firearms — including rape, murder, conspiracy, and domestic violence — went unreported to federal law enforcement.