>> even though christian karney was facing the most serious charges, he still approached his workout routine with all the discipline of the marine he once was. while we have witnessed many in-cell workouts before, it was what karney did afterwards that caught our attention. >> question. you're flexing. why are you flexing? >> every time i work out a specific muscle group, i'll flex it immediately after. it's called iso tension. everything i've learned i've learned from arnold swe schwarzenegger, his books. he was very big in body building. he's my hero. i'm going to do what he does. >> along with condition, he kept up maintaining a clean shaven head at almost any price. >> we filmed christian shaving his head, imseemed to go on forever. i don't know if it was the fact that his razor was so dull or the fact that he had no shaving cream, but it just turn eed inta bloody mess. >> it's part of the jail experience. did i miss any spots? >> make sure you get that. # yeah. >> i'm fine. >> what's that? >> make sure you don't get infected, you know. >> when christian applied the after shave t