On a 20 year sentence he might serve a total of six, maybe seven, then get paroled.
Yes, it sucks for him and for any other writer that gets busted, but at the same time, when are we going to admit that WE ARE CRIMINALS? Why do people paint if they aren't willing to lose everything for it? If you have a family and you're out bombing rooftops every night, you had better be prepared for the possibility of sending your kids a note saying, "These are the hours you can come visit me."
Life has consequences. Deal with it.