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

Authorities are searching for 45-year-old military veteran Michael Paul Brown who killed four people at a Montana bar on Aug. 1.

Four people are dead after a shooter opened fire at Anaconda’s Owl Bar at approximately 10:30 a.m. on Aug. 1, 2025, according to a press release from the Montana Department of Justice.