California hit by back-to-back shootings Seven people were shot dead south of San Francisco in the second mass shooting in California in three days Four people dead at mushroom farm Three dead at trucking business Jan 23, Half Moon Bay: Gunman opens fire on farm workers at two locations. Seven killed, one badly wounded Suspect Zhao Chunli, 67, (right) arrested after driving to local police station 5km 3 miles SAN FRANCISCO PACIFIC OCEAN San Francisco Bay Jan 21, Los Angeles: Gunman kills 11 people at dance studio in Monterey Park. Suspect Huu Can Tran, 72, (below) later found dead 200km 125 miles U.S. CALIFORNIA PACIFIC OCEAN Source: Reuters Pictures: SMC Sheriff’s office, LA County Sheriff’s Department © GRAPHIC NEWS