LOS ANGELES, CA - OCTOBER 20: Anesthesiology expert Dr. Steven Shafer testifies during Dr. Conrad Murray's involuntary manslaughter trial on October 20, 2011 in downtown Los Angeles, California. ... more 
LOS ANGELES, CA - OCTOBER 20: Anesthesiology expert Dr. Steven Shafer testifies during Dr. Conrad Murray's involuntary manslaughter trial on October 20, 2011 in downtown Los Angeles, California. Murray faces four years in prison and the loss of his medical license if convicted of involuntary manslaughter in Michael Jackson's death. (Photo by Reed Saxon-Pool/Getty Images) less 
1 / 30
Getty Images | Photo By Pool / Getty Images
Thu, Oct 20, 2011 3:49 PM EDT