The thing is, in order to not be hypocritical, we'd need to look as closely as possible.
Once we do that, we'll be looking at the molecular structure of not only the brain of the perpetrator but also the whole body (as there is of course infinite interaction). We'll be asking for the causes that led to the body being as it was at the moment of the thing will currently call "crime".
We'll end up understanding that there is no free will, which will force us to rethink what we call "punishment".