SALT LAKE CITY (AP) — A Utah school district says Friday it will open an independent investigation into alleged bullying of a 10-year-old girl who died by suicide. Her family says she was harassed by fellow students for being Black and autistic. The family of Isabella “Izzy” Tichenor accuses the district of not doing enough to protect their daughter after they reported the bullying to the school. The outside probe marks an escalation of action after the Davis School District said earlier this week it was doing its own investigation and that it had responded appropriately.