When Sir Keir Starmer arrived in Southport on Tuesday to pay his respects for the victims of the stabbing tragedy, he was heckled by locals. ‘How many more children are going to die in our streets, Prime Minister?’ called one distraught resident, as another cried: ‘Get the truth out!’ Just hours after the PM left, the roads were filled by far-right protesters after misinformation about the identity of the perpetrator spread on social media.