during his time in general population, jackson was known for his extreme workout methods and staying fit for the fight. >> people see a weak spot, you know, they come for you. you use your hands. ain't no guns in here. [ chuckles ] >> and it was, in fact, a fight that landed jackson here. >> little altercation. came out. nobody hit me. i hit them. and they brought me down here for assaulting another inmate, 15 days, you know? you got to stay in shape. you got to stay militant. you got to stay alert. 'cause anything goes. i learned how to protect myself. >> though jackson stays in peak physical condition, he says he's as much a lover as he is a fighter. >> these are my letters i got