After the Magazine's recent feature on what happens when murder cases go cold, Chris Paton, the great-great-great grandson of the UK's oldest unsolved murder victim, talks about his attempts to find the killer 150 years on.

BBC: Solving a murder in the family

Who ordered the murder remains one of Haiti's great unsolved crimes, and the mystery became the basis of the 2003 documentary, The Agronomist, by the Oscar-winning US film director Jonathan Demme.

BBC: Haiti crowds defy ban to 'protect' ex-President Aristide

The couple had sent Victoria to stay with her great aunt Marie-Therese Kouao - now in jail for her murder - in the hope their daughter would have a European education.

BBC: Francis Climbie

If he is entirely innocent of any involvement in the murder of Martha Moxley, he has certainly gone to great lengths to make it seem otherwise.

CNN: Moxley Case: Excerpts from the Sutton Report

Louise Casey says she was struck by the fact that, from the moment a murder happens, people - often already without a great deal of money - end up with a great deal less.

BBC: Hidden costs to crime victims