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

The victims killed in a bar shooting Friday in Anaconda, Montana, have been identified, Montana Attorney General Austin Knudsen said Sunday as an all-out manhunt for the suspect continues. The victims,

The suspect in the quadruple killings, 45-year-old Michael Brown, remained a fugitive, officials told USA TODAY on Aug. 4.