Montana's governor has signed an executive order freeing up more resources for law enforcement officers as they search for a former U.S. soldier suspected in a deadly shooting at a Montana bar last week.

( NewsNation) — Montana Gov. Greg Gianforte and Attorney General Austin Knudsen will hold a news conference Tuesday as a search for the suspect in a deadly bar shooting moves into its sixth day. Michael Paul Brown, 45, a U.S. Army veteran, is accused of killing four people at the Owl Bar in Anaconda, Montana, on Friday.

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