Howard - "I know nothing about that syndrome.
My point is that, without a conviction, no agency can compel him to modify his behaviour or even accept that anything he did was wrong."
Nothing like proving your own point is there?
As an Asperger's sufferer, this young man will not understand the concepts of right and wrong, or conviction and punishment, so to convict him would be an utter waste of tax payers' money.
Do a little research about the condition and see why your argument is simply not a valid course of action - or better still - read The Curious Case Of The Dog In The Night and get some insight into the condition itself.