NEW : Casey Anthony 's parents express grief , ask for compassion . Meter reader Roy Kronk comes forward , says he saw bag in wooded area . He is questioned by police and released without charge. Medical examiner declares Caylee 's death a homicide .
NEW : Casey Anthony 's parents express grief , ask for compassion . Meter reader Roy Kronk comes forward , says he saw bag in wooded area . Casey Anthony notified that remains are her daughter 's , authorities say . Medical examiner declares Caylee 's death a homicide .