William Martin had spent most of his working life in Uganda. In 1912 he returned to England and purchased a cottage in Paddock Wood in Kent.
In 1913 William Martin insured his life for £50,000 with the Empire Assurance Company. Two months later his body was found on a railway line near the Sevenoaks Tunnel in Kent. In some way he had fallen out of the moving train; had been killed possibly by the fall; and had certainly been run over by a train passing on the other side of the track. The carriage he had been traveling in was identified. The carriage door was open. In the rack above the seat was Martin’s brief case. It contained business papers that he intended to discuss with his lawyer in London and a phial of atoxyl. The only other object in the carriage was a very small empty box that had been pushed down the side of the seat. The lid of the box was missing.
Martin lived in Paddock Wood and got on the London train at Tunbridge Wells. According to a friend, Frederick Dillon, he had seen Martin alone in a second-class compartment as it pulled out of Tonbridge Station, on the day of his death. Tonbridge Station was only five miles from Sevenoaks Tunnel. It was a second-class compartment and it would have been impossible for anyone to have entered his carriage before he left it at Sevenoaks Tunnel.
Empire Assurance Company claimed Martin had committed suicide and refused to pay the £50,000 to his niece, Elizabeth Butler. However, he had been murdered by someone he had known in Uganda. How had he carried out the crime?
