A post-mortem examining the death of Chris Brahney is inconclusive, after the Stone Roses fan’s body was found in Manchester Ship Canal on Monday.
The 22-year-old’s body was found in a waterway near MediaCityUK, Salford Quays, after a ten day search following his disappearance at the band’s opening gig at Heaton Park on June 29.
The examination has not settled circumstances surrounding his death and further tests will be carried out – police are now appealing to members of the public who may have seen Mr Brahney in the city centre.
Detective Inspector Debbie Oakes said: "Officers are continuing to offer support to Christopher’s family, and we are trying to give them the answers they so desperately need.
"The post-mortem examination brought an inconclusive result, but, as is routine, samples have been sent for toxicology tests.
"We do, however, have a number of lines of inquiry that we are vigorously pursuing, including CCTV footage that could help us make more sense of Chris’ final movements, information from witnesses following the fantastic public response and other avenues for us to pursue.
"We understand that Chris walked from Shudehill, past a number of pubs, to Deansgate.
"Anyone who saw Chris in Manchester city centre, carrying a Primark bag, is urged to call the police as soon as possible."
Officers believe that after the concert Mr Brahney used the Park and Ride facility at Bowlee Park, Heywood Old Road, towards Middleton. He could have been at Bowlee Park shortly before midnight.
Further inquiries also revealed that he may have been seen outside the Maccabi Sports Centre on Bury Old Road at about 12.05am.
Officers now believe that Chris managed to get into Manchester city centre in the early hours of June 30, where he picked up shoes that he had bought earlier that day and hid in Rosenfields car park, on Thorniley Brow, near to Shudehill Metrolink station.
He also had sunglasses on his head.
Anyone with information is asked to call police on 0161 856 7652.