Officers are "unrelenting in their pursuit, working around the clock" to find him, Montana Gov. Greg Gianforte stressed at a news conference on Tuesday. "Rest assured, our brave men and women of law enforcement aren’t giving up."

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

As the search for Michael Paul Brown stretched into its fifth day, Montana Gov. Greg Gianforte signed an executive order freeing up more resources for local law enforcement.