VISTA, Calif. -- Deputies and police officers from all over San Diego County were sent to Vista on Monday night to disperse an unruly crowd at an immigration rally. The demonstration began peacefully as one of the many "Day Without Immigrants" demonstrations that took place around the county. But at about 8 p.m., some of the 800 to 1,200 protesters began throwing rocks and bottles at deputies, sheriff's Lt. Phil Brust said. Between 150 and 200 officers from police departments in Carlsbad, Chula Vista, Coronado, El Cajon, Escondido, La Mesa, National City, Oceanside and the California Highway Patrol formed riot...