A lot of people's logic is that, because the government isn't doing anything to prevent these attacks, they have to take it upon themselves to get rid of "terrorists". Little do they know, they're actually just killing innocent people. ISIS would want that, because ISIS do not like "fake Muslims" who are nice to the English. They want English people dead, and anyone who stands in the way of that is, in their eyes, just as deserving of death as a white, non-Muslim person.
While I don't condone this attack in any way, I have to point blame at the government. The authorities were nowhere to be seen after Grenfell. It was the general public (including Muslims, I should add) who had to go out to give people shelter, food, clothes, etc. It's not a really big surprise to me that people are upset, and I always thought it was only a matter of time before some fool had enough and tried to take matters into their own hands.
My so-called Prime Minister needs to take control. Instead of just saying "my thoughts are with the families and friends", she needs to actually do something about it. We sit here and, almost on a weekly basis now, we see innocent lives taken away. When is somebody going to actually do something about it instead of being sympathetic?