According to what a source told People, DeOndra passed away on October 19.
On Monday (October 26) Jamie Foxx shared a Instagram post remembering his sister:
Dixon who lived with Down syndrome, was a regular competitor in the Special Olympics since the sixth grade. She also made an appearance as a dance star in Jamie Foxx’s “Blame It” music video as well as his Grammys performance in 2010. In 2011, she was named an Ambassador for the Global Down Syndrome Foundation.