The mother, her two daughters, ages 10 and 18, and her 13-year-old son were killed, according to the state and local police. 
The only survivor was the woman’s 9-year-old son, who was flown to a hospital in St. Louis, the police said. His condition was not immediately released.
The most deadly accident happened in the Los Angeles suburb of Santa Ana when an SUV slammed into three girls, killing all of them. 
  • Orange County Fire Authority Capt. Steve Concialdi told BuzzFeed News the driver fled the scene. Concialdi said the girls, who were trick-or-treating, died at the scene and no one else was injured. 
All three girls were 13-years-old, and two were twins, the Los Angeles Times reported. 
A search later ensued for the men believed to have been in the SUV. 
The crash happened near the intersection of Fairhaven Avenue and Jacaranda Street. Police later located the car about 800 yards away in a parking lot, KTLA reported. 
Young trick-or-treaters were also killed or injured in New York, Florida, Illinois, Arizona and Missouri.  

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