Four teens charged in an attack at a Vietnamese restaurant and karaoke bar that left five people dead were retaliating for a fight the previous day, prosecutors say.

Pierce County Prosecutor John Ladenburg declined to identify the target of the July 5 shootings at the Trang Dai restaurant, saying the man was among the five wounded. He also declined to comment on what the argument was about."We do believe it was a personal vendetta of some kind, a beef that they had with him that made them want to kill him," he said.