The suspect in the deadly shooting has been identified as Joshua Jahn. Officials believe the American citizen acted alone targeting ICE personnel.

Homeland Security officials have also said that ICE agents are facing a “1000% increase” in assaults, though the agency has not provided data to support

It’s perfectly fine to disagree on policies, but it’s not OK to disagree on what’s considered human life,” one said.

The shooting suspect was identified as 29-year-old Joshua Jahn, multiple law enforcement sources told ABC News.

A shooting at the Dallas Immigration and Customs Enforcement field office on Wednesday left one detainee dead and two others wounded, officials said. The gunman, who fired from an adjacent rooftop, died of a self-inflicted gunshot wound.