No one man (or woman) knows the whole of the autistic spectrum, but I've seen wide and varied cases of people with Aspergers. I've worked with them. I know things. Can we have the people who don't actually know the syndrome stop talking about it? It's like a really bad fart in an elevator, as I've seen so far. The snap judgements on this issue, the using of Wikipedia as reliable intel when it can be changed around by anyone, and the general misinterpretation of autism anyway...isn't fucking helping.
Here...is the problem. You DO punish people for wrong. You DO NOT pretty much destroy their lives over it for all the wrong reasons. This distinction will guide us well.
He is 43, and 60 years of punishment for UFO-hunting IS THE END OF THE WORLD FOR HIM. Nevermind the Aspergers and forget who his cellmates are. Do the math. You have effectively ended his life for an accident if he gets full sentence, which some of you in this thread don't mind him getting. Provided he doesn't die of old age and natural causes while still behind bars (or of anything else), what sort of life will he have once he's out?
This matter must be handled properly. Put simply, when people do wrong, you have to give them the RIGHT kind of punishment. Not necessarily because of who they are, but because we want people not to do that thing. You're just suppose to make him not do it again. Burying him in prison for that long does not teach a learning experience that one picks up in life and grows along with to mature into a better person. It only proves that assholes get in high places.
The highest wisdom is the one that considers carefully. We have severe punishments for severe people, murdering bastards and crap like that. The analogy about breaking and entering but not stealing has a good ring, but you need to enhance that with the idea that agreements and compensations can be agreed upon. Deals can be made. Only the truly malicious should by deprived of the claim of harmlessness. If he is harmless, then we make this particular event unpleasant for him and give him a light sentence, far more lenient than ruining him. Repeated offense would be different, as any judge can see, but this is not worth pumping into the full-on that seems to be developing here.