Police shot and killed a death metal pioneer in San Francisco this week after an argument with a neighbor over tree clippings turned violent. Brian Montana, 60, guitarist for the band Possessed, died in a shootout with cops after he pulled a gun on a neighbor during an argument... One neighbor sustained non-life-threatening injuries in the shootout, during which Montana took cover behind parked cars and landscaping and used three different guns to shoot at cops for almost half an hour, according to authorities, per CBS Bay Area. “[Montana] fired multiple times at officers using a handgun, shotgun, and rifle...