Fingerprint evidence is used to solve a British murder case

The neighbors of Thomas and Ann Farrow, shopkeepers in South London, discover their badly bludgeoned bodies in their home. Thomas was already dead, but Ann was still breathing. She died four days later without ever having regained consciousness. The brutal crime was solved using the newly developed fingerprinting technique. Only three years earlier, the first English court had admitted fingerprint evidence in a petty theft case. The Farrow case was the first time that the cutting-edge technology was used in a high-profile murder case.