The federal law enforcement agency doubled its reward for a man who it said was apparently a protester at the July 10 raid and "appeared to point a firearm and possibly fired a pistol at federal law enforcement officers." The FBI said the man who fired the weapon appeared to be a protester, adding that it does not "open investigations based on First Amendment protected activity. Assaulting, resisting, or impeding federal law enforcement officers performing their duties is a federal crime." Earlier this month, a professor at California State, Channel Islands who was protesting the Camarillo raid was charged with assaulting U.S. Border Patrol agents with a deadly or dangerous weapon — a canister of their own tear gas. Caravello was among four U.S. citizens arrested at the immigration raid on suspicion of assaulting or resisting officers, according to Homeland Security.