DALLAS (AP) — For the second time in two weeks a shooter on a rooftop inflicted death on the ground, this time at a U.S. Immigration and Customs Enforcement facility in Dallas where a detainee was killed and two others were critically wounded by a gunman who then fatally shot himself.

The Department of Homeland Security said in a statement that shots were fired early Wednesday “indiscriminately at the ICE building, including at a van in the sallyport,” a secure and gated entryway. The detainees were in the van. No ICE personnel were injured.

The shooter was identified as 29-year-old Joshua Jahn by a law enforcement official who could not publicly disclose details of the investigation and spoke to The Associated Press on condition of anonymity. Investigators were seeking to determine th

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