Tritone wrote:
Meursault in Albert Camus' novel L'etranger (The Stranger)
The whole point of the book is that he is condemned for not acting as society expects him to (doesn't show emotion at mother's funeral, for instance) and being honest at all times (when his girlfriend asks if he loves her, he says no because he doesn't).
In the book he shoots an Arab, and all he says in his defence is that the sun was too bright. There are many examples of his hypersensitivity to natural stimuli prior to this, and the book goes on to describe a trial which condemns a man just as much for what he has not done (conventionally expressed remorse etc) as what he has.
Incredibly good book.
Possibly also worth looking at is a character very similar to Meursault, Tom Ripley. He's very good at acting (the first of the five novels is called
The Talented Mr. Ripley for a reason), but there are lots of moments in the books that made me think he's probably on the spectrum, chief among them his disconnect from other people that has caused many critics to label him a sociopath. There's a great moment in
Ripley's Game in which Tom and another character named Jonathan kill two Mafia hitmen who came after them. They're driving home after disposing of the bodies, and Jonathan is weirded out by Tom's behavior. Not only is Tom not shaken at all by what just happened, all he's interested in is talking about Bach. Jonathan drifts off to sleep and occasionally wakes up, and Tom is still rambling on.