Attorney General Pam Bondi said the FBI and Justice Department thwarted "what would have been a massive and horrific terror plot" in Southern California.
Nick Reiner, a son of director Rob Reiner and his wife Michele, has been arrested, according to online jail records from the Los Angeles Sheriff's Department.
The shooting happened during a mission by U.S. and Syrian forces in a historic central town near Palmyra on Saturday. President Trump and U.S. military officials attributed the attack to ISIS.
