A Long Island elementary school teacher under investigation for allegedly sexting someone he thought was a 13-year-old girl was caught on video admitting he had cloud access to a stash of child porn — and then bizarrely tried to blame his wife. Wading River Elementary School’s music teacher Mark Verity, 37, was suspended from his job Wednesday night after he was tied up in a sting operation by a group called Predator Poachers Long Island, which looks to catch would-be pervs in the act.