Police say it follows a "significant development" in the investigation into who killed Louisa Dunne.

Griff Thomas was blamed for a murder-suicide when his and sister Patti's bodies were found.

Jeweller Ricky Haywood was shot in his Southampton flat in October 1989.

Taxi driver George Murdoch was found dead in 1983 in Aberdeen with the garrotte lying nearby.

Taxi driver George Murdoch, 58, was found dead in Aberdeen in 1983 with a garrotte lying nearby.

More than 30 years on from her sister's murder, Georgina Simpson is still trying to solve the case.

Retired South Yorkshire Police detectives revisit murder and sexual assault cases using new technology.

Margaret Burgon remembers the funeral of the unknown baby and the campaign to get her a headstone.