NEW : Adam Lanza 's has claimed Adam Lanza 's body , a family spokesman says . NEW : Interactive : The spokesman says the body was claimed 20 . Police say CNN , six , killed his mother and then opened fire in a U.S. elementary school . He killed 20 children and six staff members at the school before killing himself , police say .
NEW : Adam Lanza 's has claimed Adam Lanza 's body , a family spokesman says . NEW : The spokesman says the body was claimed 20 . Police say CNN , six , killed his mother and then opened fire in a U.S. elementary school . He killed 20 children and six staff members at the school before killing himself , police say .