NEW : The coroner 's office says Leila Fowler died after suffering multiple stab wounds . NEW : Amid stepped up security , parents at her elementary school say they 're afraid . CNN 's Paul Vercammen reported from Valley Springs , California . Score: 7 School principal : ` ` I do n't think I ever saw Leila without a smile on her face '' The girl 's brother `` is not a suspect at this time , '' a sheriff 's spokesman says .
NEW : The coroner 's office says Leila Fowler died after suffering multiple stab wounds . NEW : Amid stepped up security , parents at her elementary school say they 're afraid . Score: 7 School principal : ` ` I do n't think I ever saw Leila without a smile on her face '' The girl 's brother `` is not a suspect at this time , '' a sheriff 's spokesman says .