A statement was given by Mr O'Connor's family outside Manchester Crown Court today
The two girls tragically lost their lives less than a year apart
Two 19-year-old victims have been named
He was last seen in Piccadilly Gardens on Sunday afternoon
Three people have been killed and three more have been hospitalised
Local residents and friends have left tributes for the teenager at the scene of the tragedy
Police have confirmed the body as being Christopher
A brilliant idea!
Police are appealing for witnesses to come forward
She was on her way to meet her mum for coffee