One could argue that he did "kill" the person that she was.  He most certainly altered the person she would become and the life she would have.  While he didn't take her life in the physical sense he did in the emotional sense and that can be far worse.

I get your argument but it doesn't justify what is an absolutely ridiculous sentence for a horrible, horrible crime.  Maybe manslaughter needs to be reformed as well?  I also appreciate the idea that our prisons are overpopulated and jail is not the cure all solution to crime however, I don't think the solution is to start letting rapists out after barely a year.