The suspect accused of fatally shooting four people at a Montana bar and who remains at large struggled with mental health issues, but was denied services from agencies that were supposed to help, according to his niece.

A manhunt is intensifying for the former U.S. Army soldier who's been at large for days after allegedly gunning down four people at a Montana bar. Michael Paul Brown, 45, is suspected of opening fire on Friday morning at The Owl Bar in Anaconda, a city of about 9,000 people in southwestern Montana, authorities said.

The suspect behind Montana bar shooting, identified as 45-year-old Michael Paul Brown, is still at large. Authorities have asked Anaconda residents to ‘stay inside and lock doors’