A common scenario in fiction is a prison riot that results in all the non-prisoners in either a cell block (or in more extreme cases) the entire prison getting killed by the prisoners.
In real life modern times this has never happened as far as I know but I’m curious, what would happen to the prisoners once order has been restored. Let’s say prisoners overtake an entire cell block, there’s about 200 prisoners and about 10 guards and two support personnel and in the process of the riot the prisoners kill all 12 non-prisoners.
Would every single prisoner now be charged with counts of multiple murder because they were all accessories (and also because we have no real way of knowing who was truly responsible)? Would they instead try to use prison snitches to find the true perpetrators? What would happen if an entire prison rebelled and the same thing happened on a mass scale?