Investigation
When the train reached Hackney Wick, the guard was alerted by two bankers who discovered pools of blood in Briggs' compartment. Police later found a black beaver hat. Initially it was presumed to have belonged to the deceased but it subsequently turned out to have belonged to the murderer.
On 18 July, a cabdriver called Matthews came forward with suspicions about a German called Franz Müller. He told police that the 25-year-old tailor had come to his house with a gold chain in a box. After he had attached his fob watch to the chain, he gave the box to Matthew's daughter. The box had been sold by a jeweller named John Death from Cheapside.
Death identified Müller from a photograph and told investigators the German had visited his shop on 11 July to exchange a gold chain. This was later identified as belonging to Briggs. With this evidence, a warrant for Müller's arrest was issued.
Read more about this topic: Franz Muller