SANTA ANA, Calif.—A prosecutor said Thursday that a California man acted callously in pulling out his gun and firing a shot at a car traveling on the freeway, killing a 6-year-old boy who was riding in the back in a booster seat.
Marcus Eriz, who is now 26, sat in the courtroom during opening statements in his trial on a charge of murder in the death of Aiden Leos while the boy’s mother was driving him to kindergarten on one of the most congested freeways in Orange County in 2021. Mr. Eriz and his girlfriend, Wynne Lee, were heading to work when Ms. Lee cut off a car driven by Aiden’s mother, who responded with a rude gesture, authorities said.
