What do Chuck Norris, an MMA fighter from Baltimore and a neo-Nazi from Tennessee have in common? Amateur internet detectives identified each one as a participant in the storming of the U.S. Capitol Jan. 6. Each suspected participant was then harassed online. And each subsequently could prove he was hundreds of miles away at the time of the riot. The misidentifications were hiccups in the massive crowdsource effort that may be among the largest internet-based manhunts in history. The FBI said this week it has collected more than 100,000 digital photos, videos and fragments of social media in an effort to track down and charge participants in the riot.