A medical record for Michael Jackson is projected on a screen as Dr. Robert Waldman (R), an addiction specialist, is questioned during the final stage of Dr. Conrad Murray's defense case , in his involuntary manslaughter trial in Los Angeles on October 27, 2011. Murray has pleaded not guilty and faces four years in prison and the loss of his medical licenses if convicted of involuntary manslaughter in Michael Jackson's death. UPI/Paul Buck/pool