In response to the last two posts: I don’t think he is harmless, and I agree it’s a horrible crime.
But everything I have read about Mr Kirk suggests that just locking him up for two years (actually it’s more likely to be less than a year* if he doesn’t lose his remission) isn’t going to solve either of those problems.
Given what I have read of his past history: I would suggest that treatment, compulsory if necessary, is more likely to stop the problem happening again when he gets out. Of course, if it does happen again, they can always just keep jailing him again. But that is hardly going to fix the problem; and will be far more costly both financially as well as emotionally for his victim.
Just my £.02
* That estimate is based on what happened to fraudster Kevin Crellin