Thought this might interest you.
I just watched the interview of one the neighbours of the "Lorry killer" on a french channel and I was speechless. This terrorist's profil wasn't usual at all. Normally they're in their early twenties, no education, brainwashed, and with some jail experience, but this one is middle-aged, not a devout muslim, recently divorced, had three children, a shit job (truck driver) he had to take to try to keep up with the child support payments.
Nothing is certain at the moment, but it looks like divorce-rape might be one of the main (if not the main) reasons he snapped.