White House border czar Tom Homan said Sunday that an Immigration and Customs Enforcement (ICE) agent linked to the fatal shooting of a Colombian national in Maine may never have cleared the agency's screening process if allegations of domestic violence and misconduct are substantiated.

Speaking on CNN's State of the Union, Homan addressed questions surrounding the officer, identified in media reports as David Brouillette, stating that the allegations raised serious concerns about whether ICE's vetting procedures functioned properly.

"If those are facts, I don't think he should ever have cleared vetting," Homan said. "How did the vetting process fail? Was that information not available? Did they not know? So, there's a separate administrative investigation on what happened here."

Newsweek reached out to the Department of Homeland Security (DHS) and the Maine Attorney General's Office on Sunday.

Johan Sebastián Durán Guerrero, a 25-year-old Colombian national who was legally authorized to work in the United States, was shot and killed during an ICE operation in Biddeford, Maine, on July 13.

The DHS initially stated that agents were conducting surveillance on the last known address of an individual with a final removal order when they attempted a vehicle stop. DHS reported that the driver attempted to flee and an officer discharged a weapon out of concern for public safety.

The incident drew national scrutiny after DHS officials confirmed that Durán Guerrero was not the target of the operation.

Security-camera footage reviewed by Newsweek showed the aftermath of the shooting, including a white Kia sedan moving erratically through an intersection after gunfire erupted. Witnesses reported hearing five shots. Additional footage showed federal agents pulling Durán Guerrero from the vehicle and attempting medical aid after he was handcuffed.

The shooting sparked protests across Maine and renewed questions about ICE's use of force during vehicle stops. It also intensified criticism after it was revealed that agents involved in the operation were not wearing body cameras despite a yearslong federal push to expand their use.

Media reports identified Brouillette, an Army veteran and former Department of Veterans Affairs (VA) police officer, as the agent who fired the fatal shots. Court records and interviews detailed allegations of domestic violence, mental health challenges, and protective orders involving two former spouses, which Brouillette denied in court filings.