Nikita’s school, Gayaza High School, tweeted about her death Sunday.
“Fare thee well Nikita Pearl Waligwa. You were a darling to many and we have lost you to brain tumor at such a tender age,” the school’s tweet read. “Rest in Perfect Peace dear.”
“In her real life she had the enormous challenge of battling brain cancer,” Nyong’o said. “My thoughts and prayers are with her family and community as they come to terms with having to say goodbye so soon.”
“Her battle with a brain tumor was humbling to witness,” Oyelowo wrote. “Her light will live on.”