Christopher Watts, from Colorado, has admitted killing his pregnant wife.<br />Newser reports, however, that Watts says he's not the only murderer in the family.<br />Watts says his wife, Shannon, killed their children to punish him for having an affair.<br />Watts told investigators that Shannon murdering their children sent him into a rage.<br />Court papers show that Watts says he strangled his wife because she murdered their children.<br />The Washington Post reports prosecutors believe he killed them all. <br />
