Police are appealing for information on the two-year anniversary of the murder of Ricardo Cox.

They are offering a £20,000 reward for anyone who provides information that leads to a prosecution.

On November 26, 2008 the 20-year-old student was gunned down as he walked back from Croydon town centre to the house he shared with his brother near Mitcham Road.

A stolen black Honda Civic (Hybrid) - registration DG56 XTR pulled alongside Ricardo and his brother Oniel, 24, after they had visited Kentucky Fried Chicken at about 9.20pm.

Three shots were fired, two of which hit Ricardo in the upper body. Paramedics tried in vain to save his life at the scene but he was pronounced dead early the next morning at St George’s Hospital in Tooting. He died from a gunshot wound to the abdomen.

Police believe the murder weapon is a fairly distinctive .22 calibre revolver, an unusual weapon which is still missing. They are urging anyone with information to the whereabouts of the gun to come forward.

The gunman was sitting in the front passenger seat and is described as a light-skinned black man, aged between 18 and 20, with short Afro style hair and clean-shaven. He had a deep voice and was wearing a thin black jacket.

There were two other men in the car who are described as black.

Detective Chief Inspector, Damian Allain, from the Homicide and Serious Crime Command said: "It has been two years since Ricardo's death and his family deserve to know what happened that night and have a right to see his killers brought to justice."

On December 1, 2008 the stolen car used in the murder was found on Peall Road, Croydon having been abandoned by at least two men. The lower half of the front bumper was missing, but subsequently located on Mitcham Common.

Ricardo's Aunt Juilette said: "Another year has come and gone and our Ricardo's killer is still at large. Fly high to heaven our Ricky and leave your murderers in hell.

"People out there with vital information that can assist with Ricky's murder please come forward and bring this to a close and by bringing these culprits to justice you can save a life, one less gunman, one less gun and knife on the street. Don't let you and your family be the next victim. Please help in whatever way you can. Crime can stop when you start to talk in confidence."

DCI Damian Allain said: "I am still in no doubt that there are people within the community who have information that could help our investigation.

"We have secured a £20,000 reward for anyone who assists us in getting a prosecution and we are appealing for anyone who has any information to come forward and help us catch Ricardo's killers."

Officers and the family will be on Sumner Road, Croydon on November 24 from 7.30pm where they will be handing out appeal flyers to the local community in an appeal for information.

Anyone with information is asked to call the incident room on 020 8721 4805 or contact Crimestoppers anonymously on 0800 555 111.