A gunman with a swastika on his teeshirt killed 13 people, including seven children, and wounded more than 20 at a school in Russia on Monday before committing suicide, investigators said. Russia's Investigative Committee, which handles major crimes, said it was looking into the attacker's suspected neo-Nazi links. It named him as Artem Kazantsev, a man in his early thirties, and said he was a graduate of the school. "Currently investigators ... are conducting a search of his residence and studying the personality of the attacker, his views and surrounding milieu," the committee said in a statement. "Checks are being...