Silly me; I thought the purpose of prisons is to punish bad people and remove them from society. That's not to say that I am opposed to convicts being reformed, but that should never be the primary goal, but rather an ancillary benefit of a well run system where the inmates are forced to work at jobs that help to run the institution. This of course is not for the really bad people; they need to be in a dungeon, or put to death.
But with regard for what happened at the Washington State Fair, I know there are murderers and there are murderers. Which type was taken on the field trip is problematic for sure. Hopefully, he/she was not a psycho serial killer, but maybe the type who has it in for liberals.