How police solved the 1994 cold case murder of Marina Koppel

The killer of a 39-year-old masseuse became known to police soon after the murder – but was not caught until his DNA was matched to a single hair left on the victim’s ring at her flat in Baker Street, Marylebone, nearly 30 years later.

The unsolved murder of Sami Sidhom: ‘He did nothing wrong’

The 18-year-old student was walking home from watching a West Ham football match when he was chased and stabbed to death by at least three people. Was he unwittingly caught up in a gang dispute and targeted by mistake? His family are still waiting for answers and justice.