CORRECTS TO CLARIFY RELATIONSHIP BETWEEN SHOOTER AND VICTIMS - Police officers and crime scene personnel work on the roof of a building in the Brooklyn section of New York, Monday, Nov. 11, 2013. A musician shot and killed two members of an Iranian indie rock band, the Yellow Dogs, and a third musician early Monday, and wounded a fourth person at their apartment before killing himself on the roof, police and the group's manager said. The shooter was a member of another band from Iran, the Free Keys, who knew the victims but hadn't spoken to them in months because of a "petty conflict," according to Yellow Dogs manger Ali Salehezadeh. (AP Photo/Seth Wenig)NEW YORK (AP) — A gunman who killed three Iranian indie rock musicians and injured a fourth person within a Brooklyn rental on Monday ahead of killing himself was once upset as a result of he had been kicked out of every other band final year, police stated.