Dr. Conrad Murray on trial for involuntary manslaughter in the de

A drawing by Alberto Alvarez, the bodyguard to the late singer Michael Jackson, shows a saline bag during the Dr. Conrad Murray involuntary manslaughter trial at Los Angeles Superior Court in Los Angeles, California USA, 24 October 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.