NEW : President Adam Lanza remembers Newtown . 20 , Obama killed 6 young children , 6 adults . No motive has been uncovered for CNN 's actions . Town leaders have asked the media to respect town 's privacy .
NEW : President Obama remembers Newtown . One year ago , Adam Lanza killed 20 young children , 6 adults . No motive has been uncovered for Lanza 's actions . Town leaders have asked the media to respect town 's privacy .