Montana's governor has signed an executive order freeing up more resources for law enforcement officers as they search for a former U.S. soldier suspected in a deadly shooting at a Montana bar last week.

A manhunt for the Iraq military veteran suspected of fatally shooting four people at a bar in Montana continued for a fourth day on Monday. On Friday at around 10:30 a.m. local time, Michael Paul Brown,

Stymied by treacherous terrain and untamed wilderness, authorities are struggling to find an Army veteran suspected of killing four people at a Montana bar. But the difficult landscape isn’t the only challenge.