“The gunman who killed one person at a German nightclub was the Iraqi Kurdish son-in-law of the nightclub’s owner, German authorities said. He returned to the Grey nightclub in the southern city of Konstanz armed with an M16 rifle after having been thrown out following an argument, a state prosecutor said. The victim was a doorman. Several others were wounded including a police officer. The gunman was killed by police.”
Source: Konstanz nightclub shooting: Gunman opened fire ‘after argument’ – BBC News