NEW : `` How do we know the killer is not still here , '' a neighbor asks . " Because he's been in jail for so long?'The cop says. The FBI joined local officials in the expanded search for the missing 7-year-old on Monday .
NEW : `` How do we know the killer is not still here , '' a neighbor asks . GBI Director Vernon Keenan calls the crime `` horrendous '' Officials find the girl 's body in a trash bin after expanding the search area . The FBI joined local officials in the expanded search for the missing 7-year-old on Monday .