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.

Police are looking for Michael Paul Brown, 45, after four people were shot and killed in The Owl Bar in the small town of Anaconda, Montana.

(KPAX) At a news conference Sunday morning, Attorney General Austin Knudsen said the suspect in the Anaconda mass shooting has still not been captured. Knudsen said they believe Michael Brown, 45, is still alive, and a $7,500 reward is being offered. “We’re going to get this guy,” he said. A tipline has been set up: 1-877-wanted2 or 1-877-926-8332.