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There is another Smith child, a half-brother to Jaden and Willow, named Trey Smith. He’s Will’s son from his first marriage, and he’s not nearly the public figure his younger siblings have become. That doesn’t mean Trey doesn’t have his own stuff going on. After all, it would be unusual to have the “Fresh Prince of Bel-Air” for a dad and somehow be leading a boring life. Here’s the scoop on the “other” Smith kid.