Queries for "Ron Guinto Mormon" came up with hits for "Ron" + "Guinto," but minus the word "Mormon." The search yielded conventional "LDS" hits for Mormon, but included nothing relevant to Ron Guinto. My queries for "Ron Guinto LDS" produced hits where DIFFERENT articles on "Ron Guinto" and "LDS" were listed on a single page.
What's happened here, I'm afraid, is a knee-jerk association of a gay pedophile with Mormonism. It happens often enough, but there's nothing (so far) that indicates this guy is LDS. Just a run-of-the-mill molester of young boys.