Quite possibly.
Let's face it, there are probably two extreme possibilities, with the truth lying somewhere in between:
Either he was totally unbalanced/ hearing voices in his head or similar, so did the deed "when the balance of his mind was disturbed", as they so quaintly put it...... or
He...
To talk about someone who seems to have mental health issues as "lowlife" and "a nutter" is fairly disgusting.
What has happened is appalling. If it was purely motivated by political belief and hate, it would be terrifying. The fact that it seems to have been carried out by somebody with mental...