A social media influencer known for confronting men he claims are child predators is now facing extortion and battery charges after an alleged incident at a Florida Walmart earlier this year. Jay Carnicom, 32, who has built a large following online with the so-called “ predator catcher” videos, was arrested last week, according to the Clay County Sheriff’s Office in Florida. Investigators say Carnicom posed as a minor online, and lured men to meet in person – encounters he recorded and posted to social media. One of those confrontations, filmed at a Walmart in Middleburg, outside of Jacksonville, in January, is now central to the case against him, WSVN reported. “Excuse me, everybody. This guy’s here to try to have sex with a little boy,” the suspect is heard saying in the video as he follows the man through the store. The video, which runs more than 20 minutes, films as the confrontation escalates outside the store as Carnicom questions the man and, at one point, appears to slap him twice.…