Oki was walking home from a nightclub in Bournemouth in July 2002 when she was attacked from behind without warning. She was stabbed in the back 3 times, she bled to death. She was still alive when the emergency services arrived, and in her broken English, she explained she’d been attacked by a masked man.

Eventually, Omar Benguit would be tried and convicted for her murder. A known drug user, Benguit had already racked up 60 convictions, including one for stabbing a man in the chest and threatening another with a syringe.

The main evidence used to convict him came from another known drug user with a history of false allegations. She started drip feeding information to the police about the murder of Jong-Ok Shin - Oki, as she was known. The witness was to become part of a story which led to 3 trials, 2 appeals and the involvement of a magazine and hugely popular TV programme (BBC Three’s Unsolved: The Man With No Alibi). Listen to the facts of the case, would you convict Omar Benguit of murder?