The search for a former U.S. soldier suspected of killing four people at a Montana bar has stretched into a fourth day with no capture.

Authorities are still searching for the suspect in a tragic shooting that left four people dead at a bar in southwestern Montana on Friday. Police identified the suspect as 45-year-old Michael Paul Brown,

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