Mentally Challenged

I'm confused: does William Hung have Down Syndrome?
I am really. Really. Really not trying to be mean, I just want clarity. Cause he looks like he does. Except he doesn't look like he does here. He looks like he does, but apparently he goes to Berkeley and studies civil engineering. He looks like he does, but I read a quote somewhere, from his high-school principle, calling him a "genius." Is William Hung the least photogenic person alive?
I didn't see his infamous American Idol audition, but people who lack talent to his degree, but somehow believe they are qualified to sing for millions, often seem to be suffering from a serious mental illness. At the very least they are unable to understand themselves with any objectivity and at the very worst they are like the guy who sang Escape, as though he were a dying seal, got ripped apart by Simon & Co., and then showed up in the next city to audition again, totally clueless and really disturbing in his soft-spoken faith in his eventual triumph. Of course the Idol producers didn't seem to get that he was truly, pathetically, mentally disturbed and just had Ryan Seacrest follow him around asking questions and smirking, when he should have been helping him before he took a running start for the nearest window, certain he could fly. If you're that bad, but think you're that good, you're a little cuckoo. So maybe William Hung is a little loopy too. Then again, maybe it's all a ploy to gain fame and fortune.
Weirder though, is how his Downs appearance must be a part of why people took a ken to him, and still no one talks about it. A ton of contestants, some worse, some a little better, have been on the Idol and failed miserably. Why don't they have fan clubs? Do people feel worse for William? Are they more inspired by William? Of course! Because he appears to be the most innocent victim of Simon's wrath ever. And because he can't be blamed for being an egotistical, fameseeker, cause Look! He's mentally handicapped (even if he's not really).
Yet, mums the word. Which is, kind of, as it should be if he doesn't ("William Hung, the failed American Idol contestant who has attracted a large fan base and does not have Down Syndrome..."). But maybe no one talks about it because no one has any idea, and is too embarrassed to ask. Which kind of reminds me of the interview Norm Macdonald did with Nicole Ritchie about her being black.
Substituting (and degenerating into really poor taste. My bad):
Norm: "Aren't you a retarded guy?"
Friend: "He's retarded!"
William: "I am retarded!"
Norm: "You're retarded? Did you get in any trouble because you're retarded?"
William: "No! You're so rude."
Norm: "I thought Americans didn't care for retarded people."
William: "They love me."
Friend: "They love him."
Norm: "Because you're not retarded!"
William: "Yes, I am retarded!"