DM is a target. A lot of people in prison have lived hard lives, come from difficult homes...for them to see someone who lived life on easy street in the general population, well, a lot of people would like to teach him a lesson about life...specifically about the kind of lives they've lived.
If that is really the case, then I guess we'll have to spend extra to keep him safe while incarcerated for as long as he is in prison. Maybe he'll get to go to one of those Club Fed places they send the other targets too soft for real jail.