Justin began complaining of a stomachache the night of July 3, his mother Terese Peden told the outlet. Soon, on July 5, doctors told his family he had to be put on life support and only had a 50/50 chance of survival, Peden told KGW. More: Her 5-year-old has a severe, rare disease. "We're trying to figure out what life looks like now and taking it day by day," Peden told KDVR. This article originally appeared on USA TODAY: A 5-year-old's stomachache was the first sign of rare, deadly disease