The 7-year-old son of former Chicago Bears running back and Georgia Southern standout Adrian Peterson passed away on Tuesday following his battle with brain cancer.
![A.J. Peterson getting sworn in as a honorary police office through the Make-A-Wish foundation in Chicago. <span class=meta>Round Lake Police Department</span>](https://cdn.abclocal.go.com/content/creativeContent/images/cms/522365_630x354.jpg)
![A.J. Peterson getting sworn in as a honorary police office through the Make-A-Wish foundation in Chicago. <span class=meta>Round Lake Police Department</span>](https://cdn.abclocal.go.com/content/creativeContent/images/cms/522366_630x354.jpg)
![A.J. Peterson getting sworn in as a honorary police office through the Make-A-Wish foundation in Chicago. <span class=meta>Round Lake Police Department</span>](https://cdn.abclocal.go.com/content/creativeContent/images/cms/522367_630x354.jpg)
Peterson posted the sad news in a Facebook update on Tuesday.
A GoFundMe page had been established in June 2014 to help support the family. The campaign had reached just shy of $40,000.
![](https://cdn.abclocal.go.com/content/creativeContent/images/cms/522105_630x354.jpg)
Last month, AJ was named an honorary officer with the Round Lake Police Department in a ceremony with Round Lake police and Make-A-Wish.
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.
Source: ABC 7