CHICAGO — The Chicago Blackhawks are one win away from winning another Stanley Cup championship. But one of the team’s ambassadors can’t enjoy it, because he doesn’t know its happening. Hall of Famer Stan Mikita spent his entire 22-year NHL career in Chicago. He’s now 75 and suffers from a brain disorder called Lewy body. The disorder can lead to dementia, hallucinations, and memory loss. Mikita’s wife, Jill, tells the Chicago Tribune, “His mind is completely gone. I don’t like to use that term, but there’s no other way to describe it.” “He doesn’t know he’s missing out. He has...