Judge Michael E. Pastor looks over at intravenous bags used as examples in the testimony of anaesthesiology expert Dr. Steven Shafer during Dr. Conrad Murray's trial in the death of pop star Michael Jackson in Los Angeles October 20, 2011. The claim by attorneys of Michael Jackson's doctor that the singer killed himself with an injection of the powerful anesthetic propofol is a "crazy scenario," Shafer, a top anesthesiology expert, testified on Thursday. REUTERS/Reed Saxon/Pool (UNITED STATES - Tags: CRIME LAW ENTERTAINMENT)