NEW : Autopsy shows no signs of trauma or foul play . The body was found in a shallow grave on the property where it had been abandoned for several days and covered with leaves and dirt. He died Wednesday at an Atlanta hospital . Kelly and Smith were 13-year-olds when they were discovered in 1991 at an Atlanta mall by producer Jermaine Dupri . Kris Kross topped the charts with `` Jump '' in 1992 .
NEW : Autopsy shows no signs of trauma or foul play . The body was found in a shallow grave on the property where it had been abandoned for several days and covered with leaves and dirt. He died Wednesday at an Atlanta hospital . Kris Kross topped the charts with `` Jump '' in 1992 .