ICE agent behind fatal shooting in Maine reportedly had troubled history

What the report says

Al Jazeera, citing reporting by The Associated Press and CBS News, says relatives of David Brouillette, an Immigration and Customs Enforcement officer, have raised concerns about his past after he fatally shot Joan Sebastian Duran Guerrero in Biddeford, Maine. Duran Guerrero, identified in the report as a Colombian immigrant in his mid-20s, was killed near his home on Monday, according to the article published July 17, 2026.

The reports focus on claims from Brouillette’s family members that he had long-running mental health struggles and a history of violent behavior. His former wife, Ashley Brouillette, told CBS News she did not understand how he continued to obtain jobs involving firearms and described him as a danger. Al Jazeera also reports allegations from the ex-wife, supported by her mother’s account, that Brouillette was physically abusive during their marriage, including an incident involving boiling water while she held their child.

The case has intensified scrutiny of ICE hiring and oversight as the Trump administration pursues a major expansion of immigration enforcement. Al Jazeera reports that ICE said in January it had increased manpower by 120 percent, adding 12,000 employees, while Democratic leaders argued the expansion came at the expense of proper vetting and public safety.

The Maine shooting followed another fatal ICE shooting in Houston on July 7. Al Jazeera says at least 10 people have died in incidents involving ICE agents since the start of Trump’s immigration crackdown. Democratic lawmakers including Chuck Schumer and Richard Blumenthal cited Brouillette’s reported history in calling for stronger accountability.