11 July 2012 Last updated at 07:58 ET

Stone Roses fan Christopher Brahney's death 'inconclusive'

Christopher Brahney lost his phone at the concert and became separated from friends

A post-mortem examination into the death of a Stone Roses fan found in the Manchester Ship Canal has proven inconclusive, police said.

Christopher Brahney, of Timperley, was last seen by friends at the band's gig in Heaton Park, Manchester, on 29 June.

His body was found 10 days later in the canal near to MediaCityUK at Salford Quays.

Police are now appealing to anyone who may have seen him in Manchester city centre.

The 22-year-old had lost his phone at the concert and became separated from friends.

Hidden shoes

Police later said they believed his phone could be in Edinburgh.

Police believe he may have used the park-and-ride facility at Bowlee Park, in Heywood Old Road, towards Middleton, shortly before midnight.

Further inquiries also revealed that he may have been seen outside the Maccabi Sports Centre on Bury Old Road just after midnight.

Officers now believe Mr Brahney managed to get into Manchester city centre in the early hours of Saturday 30 June, where he picked up shoes that he had bought earlier that day and had hidden in Rosenfields car park, on Thorniley Brow near to Shudehill Metro link station.

They said he was wearing sunglasses on his head.

Det Insp 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's 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."