If you look at his eyes and mouth in the first photo of him, you might , like me detect an ever -so-slight smile on his face.  Particularly on the left side of his face.  It's uncanny because he has nothing to smile about.   An article like this is informative, in the least because Canadians need very much to be educated that these types of individuals are out there, amongst all of us. .... And we need to be educated to watch out for the subtle little signs, early on, that "something is not right" with someone's behaviour.