(CNN) -- A graphic video played at a hearing Monday to determine whether two California police officers should stand trial in the beating death of a homeless man showed them kicking and punching the mentally ill man as he lay on the ground -- screaming in pain and begging for help. The victim, Kelly Thomas, died five days after the beating on July 5. Manuel Ramos, a 10-year veteran of the Fullerton, California, police department, is charged with second-degree murder and involuntary manslaughter, while Cpl. Jay Patrick Cicinelli faces charges of involuntary manslaughter and felony use of excessive force in...