Jack Hoffman, Nebraska superfan who went viral for spring game TD, dead at 19 after brain cancer battle

Jack Hoffman, Nebraska superfan who went viral for spring game TD, dead at 19 after brain cancer battle

Hoffman had battle new and aggressive tumors since October

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Cancer survivor Jack Hoffman before delivering a drug-free pledge during the halftime of Nebraska's NCAA college football spring game in Lincoln, Nebraska, on April 12, 2014. (AP Photo/Nati Harnik, File)

Jack Hoffman, left, along side his father, Andy Hoffman, accepts the award for best moment at the ESPY Awards, July 17, 2013, at Nokia Theater in Los Angeles. (John Shearer/Invision/AP, File)