Salman Abedi, a 22-year-old Briton born to Libyan parents, detonated his bomb at Manchester Arena as parents arrived to collect their children at the close of a show by the U.S. pop singer in May 2017.
Among the dead were seven children, the youngest aged just eight, while 237 people were injured and 670 survivors reported suffering from psychological trauma.
Prosecutors had said his younger...