ICE officer who shot driver in Maine had documented history of mental health issues and prior abuse allegations

An Immigration and Customs Enforcement (ICE) officer identified by relatives as David Brouillette shot 25-year-old Colombian national Johan Sebastián Durán Guerrero in his car near Biddeford, Maine, on Monday. Federal officials said the vehicle attempted to flee and the officer fired out of concern for public safety.

Brouillette, 37, is a former Army sergeant who served in Afghanistan and left the service in 2015. Family members disclosed that he was diagnosed with severe bipolar disorder and attention-deficit disorder in childhood, attempted suicide twice at age 12, and was hospitalized several times. Court records show multiple allegations of physical and verbal abuse by two ex-wives, including claims of domestic violence and harassment of his daughters. A temporary protective order was granted in 2021 after an ex-wife described his behavior as abusive toward their children.

ICE spokesperson Lauren Bis declined to confirm the officer’s identity, stating the agency would not disclose personal information about its personnel. The White House referred inquiries to ICE.

Brouillette’s employment history includes brief stints with the Maine Correctional Center, the state Health and Human Services Department, and a Veterans Affairs medical-center police detail. He later worked as a delivery driver, pursued firefighting training, and briefly held a real-estate license before joining ICE in late 2025.

Relatives said Brouillette told his ex-wife and daughter that he acted in self-defense and believed the shooting was justified. His daughter added that he claimed he needed to protect himself. The case adds to scrutiny of DHS hiring practices amid a series of fatal encounters involving immigration agents since the 2021 policy shift.