I've worked in the system and seen the statistics from the DOC about sexual assaults in prison. It doesn't happen like most people think but it does happen and to people who don't want it. Most of the sexual assaults I seen personally were inmates being violated with foreign objects like broken broom handles. So it does happen even if you dont want "your cheeks busted". Because this dude shot a cop he will probably have some respect from certain inmates, but he could end up fucked in other ways.