The arrest

Exactly a year after the murders, on 9 July 1997, the desperate police allowed the case to air on Crimewatch, a popular television show in the United Kingdom that shows reconstructions of hitherto unsolved or ongoing crimes, with the aim of gaining information from the public. 

The move seemed to have worked, as the police received a call from a Dr Philip Sugarman, a psychiatrist, who told them about his patient, Michael Stone.
Sugarman revealed that Stone had nightmarish fantasies that corresponded to the murders. A week later, Stone, 37, was arrested and held in Canterbury jail.
On 6 October 1998, he went on trial for the murders of Lin and Megan Russell and the attempted murder of Josie Russell, at Maidstone Crown Court.