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.

On Monday, the U.S. Marshal Service posted on X that a reward of up to $10,000 would be offered for any information leading to Brown. The agency has also set up a tipline at: 1-8-77-WANTED-2.

The mental health of suspected Montana gunman Michael Paul Brown, 45, declined significantly following the death of his mother, relatives said.