The singer Ariana Grande has posted a moving tribute to the victims of the Manchester bombing, one year on. Grande tweeted: "Thinking of you all today and every day.I love you with all of me and am sending you all of the light and warmth I have to offer on this challenging day Twenty-two people were killed last year when 22-year-old Salman Abedi blew himself up in the foyer of the Manchester arena following her concert.