David Brouillette military history: What to know about ICE officer in Maine shooting row?

David Brouillette first enlisted in the Maine Army National Guard in November 2007 as a chemical equipment repairer.

He later became a medical logistics specialist and was assigned to the 152nd Maintenance Company in Augusta.

In January 2010, Brouillette joined the regular U.S. Army and trained as a human intelligence collector.

He deployed to Afghanistan from May 2012 to February 2013 and left the Army as a sergeant in December 2015.

A relative said Brouillette was initially rejected by military recruiters due to childhood mental health diagnoses and that his combat deployment worsened his mental health.