"‪#‎Ajsoars‬ is in Heaven, where he belongs... ‪#‎ajsoar‬ ‪#‎P3‬ ‪#‎MyFirstSuperHero‬"

A.J. was diagnosed in June 2014, when he was just 6 years old.

The Peterson family received an outpouring of support through social media, as they publicly documented the young boy's heath struggles.

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Peterson was a star running back for Georgia Southern from 1998-2001, and played for the Chicago Bears from 2002-2009. Peterson also had brief stints with the Minnesota Vikings and the Virginia Destroyers.

Supporters have been leaving condolences on the Facebook page AJ Soars, Prayers for AJ.

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(Top left) Dr. Leyte Winfield with Spelman College, (middle left) hair relaxer cream, (bottom left) attorney Aigner Kolom, (middle) JoAnna Zackery, (top right) Kizzey Wilson, (middle right) hair relaxer kits, (bottom right) hair relaxer cream. (Arvin Temkar, Jason Getz, Abbey Cutter, Natrice Miller/AJC)

Credit: Philip Robibero