A Mexican immigrant was on his way to finish construction on several Houston homes with a crew of workers Tuesday morning when he was shot and killed by an Immigration and Customs Enforcement agent, his family said.

Lorenzo Salgado Araujo, 52, was driving in Houston’s East End area when ICE agents tried to conduct a traffic stop as part of a “targeted operation” and he attempted to evade arrest, an ICE spokesperson said in a statement to CNN.

“He should have been picking up the last of his guys before heading to North Houston to finish up construction on some houses,” Salgado Araujo’s son Ronaldo Salgado said at a Wednesday news conference.

“Unbeknownst to all of us, my dad had been shot inside his van … by ICE agents in unmarked cars,” he added.

The agency says Salgado Araujo rammed into a law enforcement vehicle and refused to follow several verbal commands before an ICE agent fired his weapon in self-defense.