Detectives in Northern Ireland investigating the murder of Kieran Doherty in Derry have issued a renewed appeal for information on the second anniversary of his death.

The 31-year-old was found shot dead on the Braehead Road on 24 February 2010 in an attack that has been claimed by the Real IRA.

The detective leading the investigation said today that police still needed assistance and information from the community to make progress.

Police have carried out a number of searches and made three arrests, but so far no one has been charged with the murder.

Detective Chief Inspector Ian Harrison, of the PSNI's Serious Crime Branch, said: "Two years after this horrific murder, detectives are still working on the case.

"Progress would be quicker and more substantial if those individuals who know what happened to Kieran, and who killed him, would talk to us.

"We want to speak to anyone who was on the Braehead Road anytime from 8pm that evening and saw anything suspicious or who knows of Kieran's movements after he left his home.

"There has been speculation about Kieran's death but police need evidence to bring charges and get justice for Kieran and his family.

"Information from the community, not speculation, will help police to build an evidential case."