Just my own personal thoughts, but I believe if something becomes targeted, there is a reason for it. By that I mean someone regardless of MH problems don't drive all the way from High Wycombe to commit a targeted act, unless there was another motive beyond MH behind it. An example would be, do you ever remember that child which was lobbed off a balcony at some museum, can't remember exact details, but that's what I would deem as a random act of mental illness - it happened merely in a moment of time - unless they can prove the person preplanned it. So for example that guy had petrol bombs, so it had to be preplanned, hence it's terrorism.
