Los Angeles Times. A 38-year-old resident of Montclair, Calif., has been arrested and booked at the West Valley Detention. About 30 riders were heading east on Kingsley Street near Tudor Avenue around 10:39 p.m. Saturday when the vehicle crashed into them. Two people have been killed after a hit-and-run driver plowed into a 30-person-strong cyclist group on a Halloween ride in Montclair, California late Saturday night.