"Even with the total lack of supervision, it's amazing that the inmates involved were smart enough to assemble two working computers from scraps, transport the computers 1,100 feet across prison grounds through at least one security check point, and travel up an elevator where they eventually hid the computers in the ceiling of a training room."
I know a guy who worked as a state penitentiary officer for a few years. Never, EVER underestimate what the human mind is capable of when confined and bored with a lot of free time. They can make lethal weapons out of seemingly nothing. Once an inmate made a blow gun out of toilet paper and cardboard that could break plexiglass in velocity - with pebbles picked up from the yard and formed into a bullet-like shape. You don't give them any opportunities.
The fact that these inmates were given free access to PC parts that were not kept track of is beyond pathetic. It's almost as if the prison staff were intentionally aiding and abetting the inmates! I'd like to know what those two were in there for. I'm sure it's public information.