Looks like just another 'nutter'.
The problem is that it is part of the human condition that we enjoy being scared, hence Grimms Tales for children and Horror Films for grown ups.
Those of us working even peripherally to security in the 70s/80s will remember a plethora of right wing/left wing groups causing mayhem and carnage. All the waccos do nowadays is either march to Dover to lob a couple of bricks or vote for Corbyn!
Meanwhile somewhere tonight there's a journalist knocking off another 1000 easy words asking 'Do We Have to Learn To Live In an Age of Violence' or some such rubbish for the Daily Mail.