Harris County officials are expected to hold a press conference on the investigation of a deadly shooting that happened on Tuesday, July 7, in Houston. A U.S. Immigration and Customs Enforcement officer fatally shot Lorenzo Salgado Araujo, a Mexican national who lived in the U.S. for decades, as the homebuilder drove his construction crew to a Houston job site. Watch NBC 5 free wherever you are WATCH HERE WATCH HERE His death set off protests in Texas' largest city and calls from Democrats and Salgado Araujo's family for an independent investigation. The shooting on Tuesday in a heavily Hispanic neighborhood is at least the eighth death during the Trump administration's immigration enforcement campaign. The Department of Homeland Security, which oversees ICE, said federal officers were looking for someone they had targeted weeks before when they attempted to stop a vehicle driven by Salgado Araujo. In a statement, DHS said Salgado Araujo rammed an ICE vehicle and that a federal officer fired a weapon in self-defense. Salgado Araujo's family said he had nearly finished the long process of obtaining legal status in the U.S. after living in the country for 35 years, and that he knew what to do if approached by ICE officers. Ronaldo Salgado, his son, said his father may have been scared that the people in unmarked vehicles were coming to steal his work tools. Here's what we know about Salgado Araujo's shooting: The shooting happened on a Houston street Few photos or video surrounding the shooting in Houston have emerged on social media, unlike other deaths involving federal immigration officers. DHS said weeks before the shooting, agents investigating a tip saw two white vans at the address of a target. While heading to that address Tuesday, officers saw a white van and someone inside who resembled the person they were looking for, the department said in a statement. DHS said an officer opened fire after Salgado Araujo ignored commands and attempted to ram the officer with his vehicle. The agency has not r #nbcdfw #crimewatchdallas