CCTV released in appeal over MI6 death

Police investigating the death of MI6 worker Gareth Williams have released the most recent CCTV footage of the victim.

Mr William's body was found in bag in the bathroom of his Pimlico flat by police on 23 August.

Detectives have also appealed for help in tracing two people seen entering his central London flat.

A post-mortem examination established no obvious cause of death and forensic tests at the flat are continuing.

As Jon Brain explains, the police are hoping the footage may jog someone's memory.