Combat veteran Don Bacon can’t easily shake the image of an angry mob of supporters of President Donald Trump storming his workplace, the U.S. Capitol, last Jan. 6.

Some rioters battered police officers with fire extinguishers and bludgeoned them with American flags while shouting “hang Mike Pence.”

Five people died in the melee. At least 140 police officers were wounded. The riots caused about $1.5 million in damage to the Capitol.