There's that old joke, right? The "you know what they do to guys like that in prison" truism.
Well, David Karl Danser, who was convicted of sexually abusing his 9-year-old daughter, then taking photographs and sharing them with others, was put in the SHU (Special Housing Unit, aka protective custody) at a minimum security prison. SHU inmates are given the choice of outdoor recreation in 10-by-10-foot cages, usually with another inmate or two. Inmates are screened against separation orders, which are based on past conflict and probability of a violent encounter.
There were no red flags between Danser and his attacker. Yet, he ended up in the hospital with broken ribs, a ruptured spleen, punctured lungs, and a few other assorted injuries after a guard broke protocol and left him and the other inmates unattended. Sounds suspicious, right? But fortunately for the prison staff, qualified immunity applies.