I would strongly recommend any young man to stay away from criminal law. It's not a good place to be, unfortunately.
I get paid for seeing that my clients have every break the law allows. I have knowingly defended a number of guilty men. But the guilty never escape unscathed. My fees are sufficient punishment for anyone.
The people I have no feeling for are professional killers. But I count that man no worse than a governor who won't commute a death sentence because it's unpolitical.