Mohammed at work
Presumably he is a reasonably intelligent man and one has to wonder what has provoked his murderous occupation.
It is being claimed by CAGE UK, the group which represents former detainees at Guantanamo Bay, that Emwazi was systematically harassed and assaulted by MI5 in order to coerce him into working for them. His tale of woe is documented here.
The story bares some resemblance to that of the "emir" of ISIS himself, Abu Bakr al-Baghdadi who seems to have been a mild mannered history teacher until he spent a couple of years in an American concentration camp, picked up during the second Gulf War.
Yet again we seem to have made rod for our own backs.
Relatives of the beheaded want him captured but it goes without saying that the absolute last thing the authorities want is Emwazi back in the UK and testifying in a Court of Law. No, they just want him dead, so likely that is what will happen.