a horrible attack no doubt about it, but not unexpected, when...

a horrible attack no doubt about it, but not unexpected, when Islamic state and their supporters in Europe massacre people like in Charlie hebdo, and the paris night club attacks and the Belgium attacks and numerous other Islamic attacks around the world, sooner or later someone will do the same to them, it was only a matter of time before it happened, I have said for years after every islamist attack, I wonder if someone will walk into a mosque and do this, and it never happened, well now it has, will Islamic state and its supporters in Europe use this is an excuse to carry out "reprisal" attacks in Europe ? probably, only time will tell.