Dave Checketts is not a professionally trained clergyman. The former chairman of Madison Square Garden and the New York Knicks is currently CEO of Legends Hospitality, the concessions and merchandise company he jointly owns with the New York Yankees and Dallas Cowboys. But he's also a lay minister for The Church of Jesus Christ of Latter-day Saints with oversight of 10 Mormon congregations in Fairfield County, Conn., including the one in Newtown.