The unsolved 1986 murder of British executive Kenneth Marston in Lyon remains one of France’s most perplexing crimes. Marston, a senior figure at power tools giant Black and Decker, was shot twice on his doorstep by a masked gunman as he prepared to take his young daughter to school. Initially living an idyllic expatriate life with his family, his sudden killing shattered any sense of normality and triggered an international investigation.

Early suspicion focused on terrorism amid heightened tensions between the United States and Libya, especially after an anonymous caller claimed responsibility. However, investigators found no evidence to support the claim, and attention gradually shifted elsewhere. Theories ranging from extremist violence to a secret affair were examined and dismissed.

The most troubling line of inquiry centered on alleged large-scale corruption within Black and Decker’s French operations. Evidence suggested that thousands of products had been siphoned from the production line and sold on the black market, potentially implicating senior insiders. The investigating judge came to believe Marston may have uncovered the fraud and was killed to prevent exposure, though no direct link to the हत्या was ever proven.

Despite televised appeals, a substantial reward, and decades of private efforts by his family, no one has been convicted. The case was closed under France’s statute of limitations, leaving Marston’s children still seeking answers and convinced the truth lies within the company he served.