Two police officers in southern California have been charged in the beating death of a mentally ill homeless man. Over the course of nearly 10 minutes, the victim, 37-year-old Kelly Thomas, was tackled, hit with a baton, pinned down, punched repeatedly in the ribs, kneed in the head, tasered four times, and then struck in the face with the taser itself eight times. Prosecutors say the officers continued the assault even after Thomas stopped struggling and a pool of blood formed around him. Officer Manuel Ramos has been charged with second-degree murder and involuntary manslaughter and could face life in prison. A second officer, Jay Cicinelli, was charged with involuntary manslaughter and using excessive force; he faces a maximum sentence of four years. The remaining three officers involved in the killing have not been charged.