the 12 jurors and 12 alternates were chosen on tuesday in arapahoe county district court after a selection process that began on january 20 , and which experts said was among the largest and most complicated in u.s. history .
holmes is charged with shooting dead 12 people and wounding 70 others in the july 2012 attack at a century movie theater in aurora , colorado , during a midnight screening of the film the dark knight rises that