James Holmes and his defense attorney Daniel King (R) sit in court for an advisement hearing at the Arapahoe County Justice Center in Centennial, Colorado June 4, 2013. Holmes, who could face execution if convicted of killing 12 moviegoers last summer, entered a plea of not guilty by reason of insanity on Tuesday, and the judge accepted his plea. REUTERS/Andy Cross/Pool (UNITED STATES - Tags: CRIME LAW)