The district, where black and Asian American students account for roughly 1% of the approximately 73,000 students, initially defended its handling of the bullying allegations but later launched an outside investigation that is ongoing.
"When I was crying out for help for somebody to do something, nobody even showed up for her," Tichenor-Cox said this week in an interview with the Associated Press. "It just hurts to know that my baby was bullied all day throughout school — from the time I dropped her off to the time I picked her up."
Being autistic made it difficult for Izzy to find words to express what she was feeling, but her mother sensed her daughter was internalising the messages from school. She asked her mother to get rid of the beauty mark and shave her unibrow. Her mother told her those features made her different and beautiful. She told her mother her teacher didn't like her and wouldn't say hi or help with schoolwork.
Izzy's mother, 31, blames the teacher for allowing the bullying to happen. Prior to this year, she said, Izzy and two of her other children liked the school.
Tichenor-Cox has also called out deep-rooted racism in the predominantly white state of Utah, where she said the N-word that kids called her when she was a child in the 1990s is still hurled at her children three decades later.
But she doesn't want fury to be her only message. She vows to make Izzy's life matter by speaking out about bullying, racism and the importance of understanding autism so that no other parent has to suffer like she is.
As she looked at a picture on her cellphone of Izzy smiling with fresh braids in her hair last May, Tichenor-Cox cried as she realised that was her last birthday with her daughter who dreamed of being a professional dancer.
"No parent should have to bury their 10-year old," she said. "I'm still in shock. ... This pushes me to get this out there like this. Mommy is pushing to make sure that this don't happen to nobody else."
Davis School District spokesman Christopher Williams did not answer questions about the investigation, the employment status of Izzy's teacher or about any direct accusations. He instead referred back to a Nov. 12 statement in which the district pledged to do an outside investigation to review its "handling of critical issues, such as bullying, to provide a safe and welcoming environment for all".
The Justice Department investigation uncovered hundreds of documented uses of the N-word and other racial epithets over the last five years in the district. The probe also found physical assaults, derogatory racial comments and harsher discipline for students of color.
Black students throughout the district told investigators about people referring to them as monkeys or apes and saying that their skin was dirty or looked like faeces. Students also made monkey noises at their Black peers, repeatedly referenced slavery and lynching and told Black students to "go pick cotton" and "you are my slave," according to the department's findings.
The district has agreed to take several steps as part of a settlement agreement, including establishing a new department to handle complaints, offering more training and collecting data.
Tichenor-Cox told AP she doesn't trust the district's investigation and said the district has zero credibility. Instead, her attorney, Tyler Ayres, hired a private investigator to do their own probe as Tichenor-Cox considers possible legal action.
She and Ayres also said the Justice Department is looking into what happened with Izzy. The agency would not say if it's investigating what happened to Izzy at the school but said in a statement Wednesday that it is saddened by her death and aware of reports she was harassed because of her race and "disability." The department said it is committed to ensuring the school district follows through on the plan established in the settlement agreement.
Youth suicides in Utah have levelled off in recent years after an alarming spike from 2011 to 2015, but the rate remains sharply higher than the national average. The state's 2020 per capita rate was 8.85 suicides among 10- to 17-year-olds per 100,000, compared with 2.3 suicides per 100,000 nationally in 2019, the latest year with data available.
Tributes to Izzy are scattered on social media under #standforizzy. The Utah Jazz basketball team honoured her at a recent game, and players Donovan Mitchell and Joe Ingles, who has an autistic son, both expressed dismay over what happened, calling it "disgusting". Other parents from the school district have sent letters to the school board calling out the district's "dismissive actions".
Tichenor-Cox and her husband, Charles Cox, have five other children to focus on, so they're doing all they can to handle the grief while trying to remember the sparkle Izzy brought to their lives for a decade.
"I want her to be remembered of how kind she was, how beautiful she was, how brilliant she was and intelligent she was," Tichenor-Cox said. "Because if I keep thinking of what happened, it's just going to put me back, and I'm trying to be strong for her."
Where to get help:
• Lifeline: 0800 543 354 (available 24/7)
• Suicide Crisis Helpline: 0508 828 865 (0508 TAUTOKO) (available 24/7)
• Youthline: 0800 376 633 or text 234 (available 24/7)
• Kidsline: 0800 543 754 (available 24/7)
• Whatsup: 0800 942 8787 (12pm to 11pm)
• Depression helpline: 0800 111 757 or text 4202 (available 24/7)
• Anxiety helpline: 0800 269 4389 (0800 ANXIETY) (available 24/7)
• Rainbow Youth: (09) 376 4155
If it is an emergency and you feel like you or someone else is at risk, call 111.