First and foremost, my thoughts go out to the victims and their families. It's Christmas and what an appalling thing to happen. My heart goes out to them.
In regards to what's happened, a lot of people are saying they are 'shocked'. Really? I tell you something, I'm not shocked in the slightest. Regardless of any refugees who may be honest people and have been dealt a shit hand, you cannot willingly open the door to 1.5 million people from third world countries (without even bringing religion into) and expect no consequences.
Stuff like this is becoming all too common and even expected now, even though it was warned many times, only to be dismissed as 'racist' etc.
If you want to know another reason why Trump and Brexit happened, look no further. Whilst there is an increase in popularity for far right parties, this has only become because people with reasonable concerns get muted.
I'm afraid lighting some candles and saying some prayers will not prevent another attack, and I fear the worst for future ones to come.