The LA Times reports:
Sheriff's deputies today arrested three people in connection with the death of a 57-year-old grandmother who was shot after confronting a man tagging a wall in Pico Rivera, a case that has sparked widespread anger.
Maria Hicks died Monday from a gunshot wound to the head that she suffered after a confrontation Friday night. Hicks was driving home near the intersection of San Gabriel River Parkway and Woodford Street when she noticed a young man tagging a wall, sheriff's officials said. She flashed her lights and honked her horn at the suspected tagger, who began walking away. Hicks continued to follow him, sheriff's officials said, and two people in a silver compact car drove up behind her and fired several shots through her back window, gravely wounding her.
She died three days later. The case was sparked outrage in Pico Rivera and beyond.