The little boy who dressed up as the big bad Predator to win StocktonCon’s costume contest wears a different outfit nowadays.It is a Chicago Bears knitted hat, a tribute to his favorite football team, that hides Devin Rodriguez’s bald head.The enormous smile on his face masks the pain and uncertainty of a 6-year-old with cancer.“He is always upbeat, always has a smile on his face,” said his stepmom, Monica McGuiness, who spends every day with [...]