The Court of Appeal has upheld the conviction of murderer Kevin Warner.The three judge panel heard submissions last week from defence lawyer Elizabeth Christopher, who said the conviction was “completely unsafe”.Warner, 22, was convicted last year by the unanimous verdicts of a jury of shooting his friend Dekimo Purple Martin in the back in May 2010.No motive for the killing was ever established. Warner was jailed for 35 years.Launching an appeal against the conviction last week, Ms Christopher argued that “extremely prejudicial” photographs and testimony from gang expert Sergeant Alex Rollin should not have been put before the jury.Sgt Rollin named Warner as an associate of the White Hill Crew and his brother, Kavon Hart, as a member of the Money Over Bitches (MOB) gang.However, Deputy Director of Public Prosecutions Carrington Mahoney argued that the conviction should stand due to “overwhelming evidence” against Warner.President of the Court of Appeal, Edward Zacca, said yesterday morning that the appeal had been dismissed and the conviction upheld.He said the reasons for the court’s decision will be issued in writing at a later date.