Jacob Walker is a 4-year-old with a rare form of dwarfism called opsismodysplasia. He's the only boy in the whole world with this type of dwarfism, but he isn't letting that hold him back.
Click here to check out his Facebook page: http://on.fb.me/1mAvUAa
Kelly Avellino has his inspirational story Thursday on 12News at 11 p.m.
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