“Kelley “was attempting to carry out death threats” on his superiors in the Air Force.”
Which brings the “gotta have a law” debate around to: when someone has proven themselves a threat to the community, and all appropriate laws are in place to deal with the perpetrator, ARE YOU REALLY GOING TO PUT THE GUY IN A CAGE?
“ARE YOU REALLY GOING TO PUT THE GUY IN A CAGE?”
Under your scenario where he “has proven themselves a threat to the community”...which can only be done by violating laws...the answer is ABSOLUTELY.
It was once commonplace. And it should be again.