GRIEVING PARENTS OF HADIYA PENDLETON ATTEND PRESS CONFERENCE

CHICAGO, IL - JANUARY 30: Nate Pendleton shows a picture of his daughter Hadiya on January 30, 2013 in Chicago, Illinois. Fifteen-year-old Hadiya was shot and killed when a gunman opened fire in the park on January 29 while she was hanging out with friends on the warm rainy afternoon under a shelter in the park. (Photo by Scott Olson/Getty Images)