growstuff
Dickens Even though the police announced that the suspect was a white male from Liverpool, it didn't stop the conspiracy theorists. Posters on social media accused the police of lying and covering up the real identity. There were even some fake pictures posted, showing men with dark skin. Even though it was pointed out that the pictures were fakes, they acted as a catalyst for anti-immigrant rants. It seems everybody has his/her own theory from watching a few video clips. I find it quite disturbing that so many people are turning into vigilantes.
It doesn't surprise me at all that there are those who will insist that there is a cover-up, that the police are lying - that the suspect is an immigrant or a recently-arrived asylum seeker.
They've got the bit between their teeth and are not going to let it go. They are on a crusade; they believe there's a big conspiracy by the government / the police to fool the public - that only foreigners are capable of such atrocities.
And they are dangerous because they fuel hatred, unrest and civil disorder.
At the same time, we have an underfunded mental health service, an underfunded and understaffed police force.
There's also the situation where terrorists have committed an act of terrorism and who, it is later established, were "known to the police". Or individuals with severe mental health problems who were allowed to fall between the cracks in the system, when they should have been closely monitored, and who then go on to commit some dreadful act like this.
... none of this helps.
Unfortunately, dealing with both these issues is not going to be easy - however calm or measured a government's response is in the future to the growing resentment against asylum seekers and immigrants. The baying crowd wants vengeance, and there are politicians willing to exploit their fears.
I don't know what the answer is, but Starmer's LP will have to deal with the problem, because I fear serious civil unrest otherwise with roaming vigilantes (as you mention) who are not interested in facts.