A Norwegian man in his 20s is under arrest after attempting to shoot up a mosque in an Oslo suburb—and failing rather spectacularly after a 75-year-old worshipper put him in a chokehold and sat on him until police came, reports the BBC. One person suffered a light injury in the shooting, reports CNN, and the suspect faces an attempted murder charge. But police have also charged the suspect with murder after the body of a woman was found at his home. Police say that the woman was related to the shooter. The shooting is being investigated as domestic terrorism. A mosque rep tells the AP that the shooter wore a uniform and helmet, and that the incident could have been much worse: There were only three worshippers left in the building when the shooter entered, though there had been a dozen only 10 minutes earlier. (More shooting stories.)