Genes are not simple triggers. No one is hardwired to commit murder or any other crime. Our actions are always the result of stupendously complex gene-environment interactions, and environment is likely to remain the more important influence by far.
After I did nine years of a television series, I didn't want to do anything really that involved going to a set and being in front of a camera for quite a while. And when I did start to want to do things, I wanted to focus more on film.