Police: Workers saved lives with school lockdown

RED BLUFF, Calif. - Authorities say a gunman tried to get into rooms at a California elementary school with the intent of shooting children but that workers initiated a lockdown that saved lives.  Tehama County Assistant Sheriff Phil Johnston says school officials heard shots being fired and immediately locked down Rancho Tehama School in a tiny, rural town Tuesday.  He says it was "monumental" that school workers took the action they did and there is no doub