Multiple Arrests in Halloween Crash That Killed 3 Police in suburban Los Angeles say they've made multiple arrests in the hit-and-run deaths of three teenage girls who were trick-or-treating on Halloween, but few other details have been released. Authorities in Santa Ana had been looking for the driver and another person who fled the scene of Friday evening's crash, which claimed the lives of 13-year-old twins and a 13-year-old friend at a crosswalk. Santa Ana police said officers made the arrests Sunday, but declined to provide an exact number of arrests or other details ahead of a news conference scheduled for Monday. A witness told the Los Angeles Times the girls were wearing costumes with black leggings and dark clothing when they were hit. Two of the girls were declared dead immediately, and a third died as paramedics prepared to take her to a hospital, Orange County fire Capt. Steve Concialdi said.