Patrons at a restaurant acted selflessly to stop a gunman who opened fire while a wedding was taking place at a New Hampshire country club, averting a worse tragedy, authorities said Sunday.

"Inside the home, troopers found the bodies of four family members: Emily Long (age 34), Ryan Long (age 48), son Parker Long (age 8), and daughter Ryan Long (age 6). A third child, a toddler, was found alive and suffered no physical injuries," New Hampshire Attorney General John Formella said in a statement Tuesday afternoon.