And to make things worse, the recidivism (sp) rate is something like 54+%. That means that over half of them will strike again once they are released/treated/whatever.
This is a situation where as a society, we should just collectively decide to kill-off these people and get their genes out of the gene pool. I know a lot of it is environmentally-driven (i.e. abused as a child themselves), but some of it may be genetic. If we're agressive enough, we could exterminate those genes and save other children (and their parents) needless suffering.