Christopher Dion Foster was 18 when he was shot and killed in Tulsa, Oklahoma, on the night of March 12, 2017. Foster was leaving the home of his former girlfriend’s stepfather, Antonio Simmons, accompanied by two teenage girls. After being allowed inside, Foster was later asked to leave; as he and the girls were getting into their car, Simmons followed them and opened fire into the vehicle. The shooting killed Foster and one of the girls, Cynthia Peraza.

Police found no weapons inside the car. Antonio Simmons, who had a prior criminal history, was arrested and charged with two counts of first-degree murder plus assault with a deadly weapon and possession of a firearm by a former felon. Simmons said he acted in self-defense and alleged Foster had been violent toward his stepdaughter in the past. Foster’s mother, Antoinette Foster, said her son had been trying to turn his life around despite a troubled past.

If anyone witnessed the shooting or knew the victims, please share what you remember.