On a warm July afternoon in 1986, a 25-year-old estate agent left her office in Fulham, southwest London, to show a house to a client who called himself “Mr Kipper”. She has never been seen again.
Forty years later, the Metropolitan Police’s cold case unit has issued a last-ditch plea for information to find Suzy Lamplugh’s body, as they prepare to wind down one of the UK’s longest-running missing persons investigations. Detectives say they are convinced they know who killed her — convicted rapist and murderer John Cannan — but he died in prison in 2024 aged 70, taking any confession to the grave. Now, the hunt for forensic evidence and witnesses is a race against time.
“Explainer on the Suzy Lamplugh disappearance, the Mr Kipper mystery, prime suspect John Cannan, and the 40-year cold case's final plea.”
The case began on July 28, 1986 (the date often given as July 18 in some early reports, but the 40th anniversary in 2026 was marked on July 28). Suzy Lamplugh, an estate agent for Sturgis, left her office to meet a potential buyer at 37 Shorrolds Road, Fulham. She wrote in the office diary that she was going to see “Mr Kipper” — a nickname for the client that would become infamous. She never arrived at the property and her car, a white Ford Fiesta, was later found parked near the house. A massive search and high-profile media campaign failed to trace her. In 1994, she was officially declared dead, presumed murdered.
For decades, the killer’s identity was a mystery. Then in 2002, Scotland Yard publicly named John Cannan as the prime suspect. Cannan was already serving a life sentence for the 1989 murder and rape of Shirley Banks in Bristol. He had a history of abduction and sexual violence, and his modus operandi matched elements of Suzy’s disappearance. He also used the alias “Mr Kipper” — a reference to the popular cake brand, which he reportedly found amusing. But despite multiple police attempts, Cannan never confessed, and there was never enough forensic evidence to charge him. He died at HMP Full Sutton in 2024, aged 70, still denying involvement.
The investigation has eliminated other suspects over the years, including serial killer Steve Wright (the “Suffolk Strangler”). Detective Chief Inspector Teresa Foster of the Met’s cold case unit now says Cannan remains the “prime suspect”, but the case will be classified as “inactive” within the next year. The team has just months to trace 30 people who may hold key information, with the hope of finally locating Suzy’s body.
For UK readers, the Suzy Lamplugh case is a stark reminder of how a single, seemingly routine work appointment can end in tragedy — and how justice can remain elusive for decades. It also highlights the challenges faced by cold case teams: witnesses die or move away, suspects die, memories fade. The case has become part of British crime folklore, influencing how estate agents and lone workers approach safety. It also raises questions about how police handle high-profile missing person cases and the resources allocated to them over time.
Q: Who was “Mr Kipper”? The nickname “Mr Kipper” was the name Suzy Lamplugh wrote in her office diary for the client she was meeting on the day she vanished. Police believe it was an alias used by John Cannan, the prime suspect, who allegedly found the name amusing. The real identity of “Mr Kipper” has never been definitively proven.
Q: Why was John Cannan never charged with Suzy Lamplugh’s murder? Although Cannan was publicly named as the prime suspect in 2002, the Crown Prosecution Service decided there was insufficient evidence to charge him. No body was ever found, and forensic evidence was lacking. After his death in 2024, detectives examined his prison writings but found no new clues.
Q: What is happening with the investigation now? The Metropolitan Police’s cold case unit is winding down the 40-year investigation and will classify it as “inactive” within the next year. They have issued a final appeal for information from 30 individuals who may have key details, in the hope of finding Suzy Lamplugh’s body before the case is closed.
The investigation will likely become inactive within the next 12 months, meaning no active police work unless new evidence emerges. Detectives urge anyone with information — no matter how small — to contact the Met. Suzy Lamplugh’s family, who released new photos on the 40th anniversary, continue to hope for closure.
