The manhunt for an Army veteran suspected of killing four people at a bar he frequented has expanded in the rugged Montana terrain, even as some fear the fugitive may return to the area, authorities said.

Montana Govenor Greg Gianforte was slated to hold an updated press conference sometime Tuesday, Aug. 5 to address the manhunt.

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.