Three teenage girls savagely killed a pensioner on the streets of London in an 'unprovoked attack' and proceeded to film the horrific assault on their phone. Two of them were sisters, and since their sentencing last Friday, details have emerged of their chilling past, which led to the killing. The two sisters, 14 and 16, along with their 17-year-old friend, viciously assaulted Fredi Rivero, 75, on the streets of Islington, north London, on February 27, 2025. Bolivian national Mr Rivero had been