Karen Hales was stabbed multiple times and set on fire in her own home in Ipswich in 1993. Her parents found their 18-month-old granddaughter sobbing next to their daughter's body. The three suspects are now all dead and the police renew their call for witnesses to come forward

Police investigating the cold case murder of a mother more than 30-years-ago have revealed for the first time that they had three suspects who have all now died.