In a shocking twist of justice, a £20,000 reward has been offered to help solve the 1986 murder of Diane Sindall, whose killer has evaded capture for over 40 years. The case has been marred by a devastating miscarriage of justice, with an innocent man, Peter Sullivan, spending nearly four decades in prison for a crime he did not commit.
Sindall, a 21-year-old florist, was brutally murdered in the early hours of 2 August 1986 in Birkenhead, Merseyside. Her body was discovered in an alleyway off Borough Road, and the cause of death was confirmed as a cerebral haemorrhage following a sexual assault and extensive injuries.
In a shocking turn of events, Sullivan, then 30 years old, was wrongly convicted of Sindall’s murder in 1987, earning him the chilling monikers “The Mersey Ripper” and “The Beast of Birkenhead.” However, after decades of protesting his innocence, Sullivan’s conviction was finally quashed in 2025 when DNA evidence proved the killer was someone else.
Merseyside Police’s Detective Superintendent Rachel Wilson expressed the devastating impact on Sindall’s family, who are still awaiting answers as to who was responsible for her murder. “It is devastating for Diane’s family that they are still waiting for the answers as to who was responsible for her murder, and we remain committed to identifying the person whose DNA was left at the scene,” she said.
The investigation has been ongoing, with over 460 male DNA samples eliminated from the case. However, the DNA found at the scene does not match any individual in the national database, leaving the killer’s identity a mystery. Authorities are urging anyone with information, no matter how small, to come forward, as “it is never too late to do the right thing.”
The £20,000 reward is being offered by Crimestoppers and is valid for three months, expiring on 22 April 2026. The police are particularly interested in hearing from anyone who was in the area of Borough Road on the evening of 1 August 1986 or the early hours of 2 August, as well as those who may have witnessed a man running from the scene where Sindall’s belongings were found on Bidston Hill on 3 August.
This case has been a haunting reminder of the devastating consequences of a wrongful conviction and the ongoing quest for justice. With the reward now in place, the hope is that new information will finally uncover the identity of Diane Sindall’s true killer and bring closure to her family after over four decades of unanswered questions.