An ICE agent identified by his ex-wife as David Michael Brouillette is under scrutiny after he fatally shot 26-year-old Johan Sebastián Durán Guerrero in Biddeford, Maine. Multiple reports describe Brouillette as having a prior law enforcement and public-safety background and as a licensed real estate agent. ICE reportedly hired him earlier this year. According to Ashley Brouillette, she recognized him after he contacted her and later identified him as the shooter. She says he told her the shooting was justified because Guerrero tried to hit him with a car and urged her to lie and cover for him. The same accounts include allegations from relatives and court-related statements describing a pattern of violence and abuse by Brouillette toward multiple partners and children, including incidents in which he was accused of throwing boiling water, stalking and harassing, and attacking or dragging family members. Some sources also cite claims about his mental health, including reports of severe bipolar disorder, attention deficit disorder, and past hospitalizations or disability treatment. NPR also reports that an ex-wife describes him as holding racist beliefs and having violent tendencies. Details about the shooting investigation and background checks are still developing.