Within hours of a stabbing attack in northwest England that killed three young girls and wounded several more children, a false name of a supposed suspect was circulating on social media. Hours after that, violent protesters were clashing with police outside a nearby mosque the first of several violent protests in across England.

Police say the name was fake, as were rumours that the 17-year-old suspect was an asylum-seeker who had recently arrived in Britain. The suspect charged with murder and attempted murder was named Thursday as Axel Rudakubana, born in the UK to Rwandan parents. By the time a judge said the teen suspect could be identified, rumours already were rife and right-wing influencers had pinned the blame on immigrants and Muslims.