Seven people were killed in two related shootings at agricultural facilities in a California coastal community south of San Francisco on Monday.The incident marked the state's third mass killing in eight days, including an attack at a dance hall on Saturday in which 11 people died during Lunar New Year celebrations.

Seven people were killed in two related shootings at agricultural facilities in a California coastal community south of San Francisco on Monday.The incident marked the state's third mass killing in eight days, including an attack at a dance hall on Saturday in which 11 people died during Lunar New Year celebrations.