A fresh appeal has been launched to help find those responsible for the killing of a teen DJ five years ago.

Carl Beatson Asiedu, known as DJ Charmz, was stabbed in the heart in the early hours of August 1, 2009 outside Club Life, Vauxhall.

Detectives investigating the murder are keen to trace Jeffrey Okafor who they believe is responsible for killing the 19-year-old, and may have moved to Nigeria.

Police are offering a £10,000 reward for information leading to Okafor’s arrest.

Detectives are also launching a Facebook appeal in the hope that someone is able to provide information on Okafor’s whereabouts. He was a known Facebook user before the murder and officers believe that he is still using this or other social media as a means of communicating with friends and family back in the UK.

Police believe Okafor is hiding in Nigeria having left the UK on August 17 2009. He was last seen on CCTV boarding an Air France flight at Heathrow Airport using his brother’s passport.

Mr Asiedu was killed following a fight outside the club where he had performed a set.

He was found collapsed on the street. He had become separated from his friends during the altercation who returned with others to find Carl lying in the road During the course of the investigation detectives made extensive enquiries and gathered CCTV evidence managing to identify the eleven who had been involved in the altercation. It is believed the motive for the attack lay in a trivial college dispute between Carl’s friend and Bolaji Kako-Are who was later convicted of violent disorder.

Junior Okafor - Jeffery’s brother - pleaded guilty to assisting an offender. The evidence at court confirmed he gave his passport to his brother and travelled to Heathrow airport with him. CCTV at the airport showed the two brothers together before Jeffrey Okafor walked through to board the Air France flight. In August 2010 Junior Okafor was sentenced to four years’ imprisonment. Lynn Kanebi, their mother, was acquitted of the same charge following trial the same year.

Bolaji Kako-Are and Abu Mansaray were convicted of violent disorder in May 2011 and both were sentenced to three years imprisonment each.

Junior Ademujimi-Falade was found guilty of violent disorder and manslaughter and sentenced to three years and eight years imprisonment respectively to run concurrently in December 2011.

Anyone with any information is asked to contact the incident room on (+44) 0208 721 4005, call Crimestoppers anonymously on 0800 555 111 or email jeffreyokaforwanted@met.police.uk Alternatively you can contact Crimestoppers anonymously on or provide information on line by visiting www.crimestoppers-uk.org.

Carl’s father John Asiedu said: "Five years have passed since Carl was murdered. I still feel the pain and get a lump in my throat whenever his tragic death crosses my mind, or when I hear that someone has been stabbed to death. Part of me died with him and I have to carry on living with what is left of me. Carl's tragic death has changed my view of life, people, the justice system and the world.

"I would urge Jeffrey Okafor to do the right thing and give himself up. I believe there are people in Nigeria who know him but don't know who he really is. I believe he is living comfortably with a new life. Sometimes I wonder how such killers can lead normal lives with their families and friends who sometimes protect and shield them from the law.

"I am still serving the 'life sentence' of sorrow and pain embedded in my consciousness. My faith in Jesus Christ has helped to soothe the devastating emotional pain and heal the wound."