But there are 32 other unsolved murder cases for which killers have never been jailed.
1. LILY STEPHENSON
The pensioner was battered to death in Springfield Place, Barnsley , in 1962. Her murder is the oldest on South Yorkshire Police's books. Photo: JPI Media
2. ANNE DUNWELL
The Rotherham schoolgirl's naked body was found at the foot of a manure heap near Slade Hooton in 1964. She had been sexually assaulted and strangled with her own stockings. Photo: JPI Media
3. JOHN WORTLEY
The car park attendant was attacked while he worked in a kiosk in a multi-storey car park on Pond Street in Sheffield city centre in 1975. His attacker stole £60. Photo: JPI Media
4. BARBARA YOUNG
The 28-year-old was attacked in Netherall Road, Doncaster, in 1977. Photo: JPI Media