The manhunt for the suspect who opened fire and killed four people at a Montana bar has stretched into its fourth day on Monday.

Michael Paul Brown, 45, is still on the lam after allegedly walking into the Owl Bar in Anaconda at around 10:30 a.m. on Friday, before fatally shooting a bartender and three patrons and fleeing the scene, Montana Attorney General Austin Knudsen said.

The victims were identified Sunday as bartender Nancy Lauretta Kelley, 64, and patrons Daniel Edwin Baillie, 59, David Allen Leach, 70, and Tony Wayne Palm, 74.

It’s not clear what motivated the shooting, and Knudsen described Brown as an "unstable individual" who likely knew the victims.

The public is warned that he is armed and dangerous, as officials announce a $7,500 reward for information on his whereabou

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