Former Minneapolis police Officer Derek Chauvin has been stabbed by another inmate at a federal prison in Arizona where he's serving time for the murder of George Floyd.
With federal prison they send them to whichever has the least overcrowding/most staff on hand. They also take into account a bunch of other things, like how much of a risk the prisoner is for committing violence, mental or physical health requirements, etc, and send them to whichever one is best equipped to deal with the specific needs.