He was in his hometown of Sikeston, Missouri, reportedly at his mother's home, when he died. He had been suffering from numerous ongoing medical issues tied to his weight. He was in heart failure, kidney failure, and had liver disease.
Scott County Coroner Scott Amick told Fox News the Season 3 victor died of an array of diseases pertaining to his weight, including heart and kidney failure and liver disease.
He was involved in a near-fatal wreck previous year after blacking out behind the wheel and running into two trees.More news: Sandra Bullock on Bonding with All-Female 'Ocean's 8' Cast
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Following the tragic news of his death, Piers Morgan, who was a judge on America's Got Talent when he won the show, took to Twitter to pay tribute.
"It's a very slow progress", he continued.
Boyd's twitter biography still has the line, "Boyd for Missouri 2014". I shattered a lot of bones, and shattered my hip, which has left me nearly unable to use that leg for now. He then went on to release an album, My American Dream, in 2009, and performed at the Republican National Convention in 2012.
Boyd briefly dabbled in politics, too: He ran for a seat in the Missouri House of Representatives twice, but was defeated both times.