This year marks the 40th anniversary of the disappearance of Suzy Lamplugh, a 25-year-old estate agent who vanished on July 28, 1986, after leaving her office in Fulham, London, for a viewing. Her case, one of Britain's most enduring missing-person mysteries, remains officially unsolved, though her family remains convinced of the identity of her killer.

Lamplugh was last seen heading to a property on Shorrolds Road to meet a client known only as "Mr. Kipper." Witnesses later reported seeing her arguing with a man outside the house before they walked away together. Her white Ford Fiesta was found abandoned a mile away that evening, with her purse still inside, but Lamplugh was nowhere to be found. The initial police investigation, involving 40 officers, yielded no leads, and the case was closed in 1987. Lamplugh was officially declared dead in 1993, despite the absence of her body.

The investigation took a significant turn in 2002 when police named convicted killer John Cannan as their prime suspect. Cannan, who had a history of violent and sexually motivated crimes and was imprisoned at the time, bore a resemblance to a police e-fit of "Mr. Kipper" and was known to drive a BMW similar to the one believed to have been used. Reports also suggested "Kipper" was a nickname he acquired in prison. At the time of Lamplugh's disappearance, Cannan was on day release from prison, having served seven years for rape. He allegedly bragged to detectives that there were "one or two things I haven’t been caught for." Lamplugh's mother also recalled her daughter being pestered by an unwanted suitor with links to Bristol, where Cannan was from.

Despite the circumstantial evidence, the Crown Prosecution Service deemed it insufficient to bring Cannan to trial. In October 2023, the parole board ruled Cannan too dangerous to be released. He maintained his innocence, claiming he was in Birmingham with his mother on the day Lamplugh disappeared. Cannan died in prison in November 2024 at the age of 70, while serving a life sentence for the 1987 murder of Shirley Banks.

In the years since Lamplugh's disappearance, police have conducted numerous searches for her remains, including excavations at properties once owned by Cannan's mother and digs at various sites in Worcestershire and Somerset. These efforts, along with testing the DNA of hundreds of unidentified bodies, have not yielded any success.

Lamplugh's family has channeled their grief into advocacy. Her parents, Paul and Diana Lamplugh, established the Suzy Lamplugh Trust, which has become the UK's leading personal safety charity, focusing on violence against women and girls. The trust runs the National Stalking Helpline and has influenced public policy, including advocating for the licensing of private hire vehicle drivers. Lamplugh's sisters, Lizzie Bingham and Tamsin Tomlin, continue to keep her memory alive, sharing her story with younger generations and emphasizing the importance of personal safety.

While police continue to investigate cold cases, the Lamplugh family has largely accepted Cannan as the perpetrator. However, the lack of a recovered body means the case remains open in many respects. The family will commemorate the 40th anniversary with quiet reflection and a minute's silence at 12:40 p.m., the time Suzy Lamplugh left her office on that fateful day.