Incarcerated male serial killers--how could they best benefit society?

OXI's answer must've been reported 1000 times by the fascist homosexual JD accounts that now run this place, but I'll answer in his stead: incarcerated male serial killers would benefit society by being loosed within the prisons, permitted and equipped, to kill the dangerous, life-long criminals we're all paying billions as a society to house in prisons all over this country. Here we have these natural born killers going to waste, in single-tenant cells, awaiting the death penalty--it's about as stupid as trying to balance the budget in this country.