Robert William Johnson, who works for a medical equipment company, confers with Deputy District Attorney David Walgren while testifying at the Conrad Murray involuntary manslaughter trial in downtown ... more 
Robert William Johnson, who works for a medical equipment company, confers with Deputy District Attorney David Walgren while testifying at the Conrad Murray involuntary manslaughter trial in downtown Los Angeles, Friday, Sept. 30, 2011. Murray has pleaded not guilty and faces four years in prison and the loss of his medical license if convicted of involuntary manslaughter in Michael Jackson's death. (AP Photo/Al Seib, Pool) less 
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Associated Press | Photo By Al Seib, Pool
Fri, Sep 30, 2011 2:47 PM EDT