Jose Trinidad Rojas Pliego was in the passenger seat of the white work van when Lorenzo Salgado Araujo was shot and killed on July 7.
Lorenzo Salgado Araujo was shot and killed on Tuesday.
"Unfortunately, there has been another death of a Mexican national in the United States," President Claudia Sheinbaum said after Lorenzo Salgado Araujo was shot and killed by an ICE agent.