The police in Kristiansand receive assistance from Kripos to investigate the killings in Baneheia. Forensic scientists provide insight into what the crime scene and the actions can tell about who was behind it. The police receive early tips about Viggo Kristiansen and Jan Helge Andersen. The first tip comes just three hours after the girls were found, when a man troops up to the police station in Kristiansand to tell about a suspicious man he saw in Baneheia the night before the murders.