Police say the suspect was "a regular" at the bar where he opened fire, and that a bartender and three patrons were among the victims.

The manhunt for Michael Paul Brown entered its third day on Sunday, with authorities warning the suspected gunman may return to town.

Amid an ongoing manhunt, Montana authorities warned Sunday that Michael Paul Brown, the suspect accused of killing four people in a Montana bar on Friday morning, could return to the town of Anaconda