This past weekend, Izzy died by suicide, Tichenor said.
She responded that all of her children, not just Izzy, have experienced racism at school with little action from administrators.
When she confronted administrators about the incidents, she received unsatisfactory answers, she said.
Another one of her daughters was recently called the n-word, and students also told her son that he smelled bad, Tichenor said.
She held the news conference to demand accountability from the school district.