Life in prison without parole. He'll never set foot outside of prison again for the rest of his life.
I wonder if this will deter others, or do most people think they will never be caught, like he did
Tougher sentencing has never lowered crime rates AFAIK.
I think it will certainly deter some people from thinking about starting a darknet market, but for most it wont stop them and there will always be people willing to take the risk.