CBS Texas talked with several witnesses who arrived at the field office for appointments on Wednesday morning and were waiting to be processed when the gunshots rang out.

Officials still haven't released the identities of the three detainees shot at an ICE facility in Dallas, one fatally.

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

Officials are still working to recover Joshua Jahn's digital history, hoping it will shed more light on his motive and beliefs.

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

DALLAS — Federal officials named Joshua Jahn, a 29-year-old unemployed Collin County college dropout, as the suspect who opened fire at the Dallas Immigration and Customs Enforcement facility, killing a detainee and wounding two others before fatally shooting himself.

ICE" on an unused bullet, fired on an Immigration and Customs Enforcement field office in Dallas from a nearby rooftop on Wednesday, killing a detainee and badly wounding two others before taking his own life,