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AUGUSTA, Maine (AP) — When David Brouillette told his ex-wife Ashley late last year that he had joined Immigration and Customs Enforcement, she didn't believe him. Her ex-husband was abusive, had a long history of psychiatric issues and never should have been given a badge and a gun, she and other relatives of his told The Associated Press .
Ashley Brouillette didn’t realize he’d been telling the truth until this week, when videos began circulating online of the moments surrounding the shooting of a 25-year-old Johan Sebastián Durán Guerrero by an ICE officer in the coastal Maine city of Biddeford.
She told the AP that she spoke to her ex-husband in a Facebook audio call, and he acknowledged that he had killed Durán Guerrero. Their 18-year-old daughter, Madison Brouillette, also told the AP that her father called her Wednesday and said that he killed him.
David Brouillette’s troubling past further challenges how thoroughly the Department of Homeland Security has vetted recruits as it went on a hiring spree to help carry out President Donald Trump’s immigration crackdown. At least 10 people have died in encounters with immigration agents since Trump launched the crackdown after starting his second term.
DHS, which oversees ICE and hasn’t released the name of the officer who killed Durán Guerrero, has said the “vehicle attempted to flee the scene and, fearing for public safety, an officer discharged his weapon.”
When reached for comment about Brouillette’s record and his role in Monday’s shooting, an ICE spokesperson said in a statement that, “We will never confirm or deny attempts to dox our law enforcement officers,” and that “The ICE officer in question has nearly a decade of federal law enforcement experience with required training including use of force training.”
Brouillette, 37, didn’t respond to text messages or an email seeking comment. Three relatives who said they had spoken to him since the shooting, including Ashley and Madison Brouillette, said he told them he acted in self-defense.
The White House referred all questions about the shooting and Brouillette to ICE.
David and Ashley Brouillette were high school sweethearts who married in 2007 but divorced two years later. She said he became violent with her after she got pregnant, and that the abuse continued after she left him.
David Brouillette doesn’t appear to have a criminal record in Maine, as a check with the Maine Department of Public Safety returned no records for him.
But hundreds of family court records obtained from the Augusta District Court clerk’s office detail years of allegations of physical and verbal abuse raised by his second ex-wife on behalf of herself and his daughters.
The second ex-wife — whom the AP is not identifying because she fears retaliation — alleged that he had stalked and harassed her and physically and verbally abused his daughter, according to multiple requests for temporary protection orders.
“Dave needs counseling or something for his PTSD & depression,” she wrote in an application for a temporary protective order on behalf of his teenage daughter which a judge granted in 2021.
In court filings, David Brouillette said that his second ex-wife had slandered him.
Madison Brouillette said she also witnessed her dad’s volatility, including when she came home from school once and he told her he had been sitting on a tree stump with a gun to his head.
An immediate relative of David Brouillette who spoke on the condition that their name not be used said he was diagnosed with severe bipolar disorder and attention deficit disorder as a child — a diagnosis that Ashley Brouillette confirmed. The immediate relative described him as “extremely mentally ill” and said he attempted suicide twice at age 12 and was hospitalized multiple times.
The relative said they’ve been estranged for years, after they broke off contact because they feared he would harm them. He did not respond to their outreach this week, the relative added.
Growing up in Gardiner, a city of about 6,000 people roughly 60 miles (97 kilometers) northeast of Biddeford, where Monday’s shooting occurred, David Brouillette was enchanted by law enforcement and the military, his relatives said.
Brouillette was initially rejected by military recruiters because of his mental health diagnoses, but recruiters encouraged him to go off his medications for a year and reapply, which he did, his immediate relative said. He was eventually able to enlist.
According to U.S. military records, Brouillette was enlisted in the Maine Army National Guard from November 2007 until January 2010. He then joined the regular Army as a human intelligence collector. Brouillette deployed to Afghanistan from May 2012 to February 2013 and eventually left the Army as a sergeant in December 2015.
After his discharge, Brouillette held a hodgepodge of jobs — some in or adjacent to law enforcement — and was injured in an accident while training to become a firefighter, public records and court documents show.
But by the end of 2021, he wrote in a text message included in court filings, he was broke, going to school full-time and making money delivering food for DoorDash.
In March, the Maine agency that handles child support matters filed a lien against him, public records show. The filing suggests that Brouillette may have been in line for a permanent impairment or disability settlement.
In late 2025, around the time he joined ICE, his ex-wife Ashley said he left a three-minute voicemail mocking her for taking out a restraining order against him. According to the message she shared with AP, he repeatedly called her “disgusting” and suggested that she and the other female members of her “bloodline” should die.
“And all of you should have your f——--g throats cut,” the voicemail said. “Yeah, you should. Am I threatening that I’m gonna do that? Nope. Nope. But do I think that you should have your f——-g throats cuts? Or should have had them cut? Yep.”
She said she cut off contact with him until Wednesday, when his picture began circulating online.
Ashley Brouillette reached out to his current wife on Facebook and they spoke on the phone for several minutes. Her ex-husband spoke with her, according to cellphone screenshots of the phone exchange she shared with the AP. He acknowledged he had fatally shot Durán Guerrero.
“He was asking if I could tell them that he was a good person and not to talk about the abuse and stuff that I had endured while with him and he said that the most important thing is his character right now,” she said.
She said he told her he is now hiding in protective custody.
“I asked him why he did it,” she said. “He said it was a justified shooting. The guy was trying to run him over with a car.”
His daughter also said he told her it was justified.
“I don’t think he sees himself as a killer,” Madison Brouillette said.
Brook reported from New Orleans, Sisak reported from New York and Galofaro reported from Louisville, Kentucky. Associated Press reporter Will Weissert in Washington contributed to this report.
Brook is a corps member for The Associated Press/Report for America Statehouse News Initiative. Report for America is a nonprofit national service program that places journalists in local newsrooms to report on undercovered issues.
