S1, E5: Part 9 ("The Obfuscator") investigates the potential killer's involvement in Kenley's disappearance through interviews with the POI's family members and the help of a forensic hypnotist. In Part 10 ("The Missing Link") Kenley's mother goes to meet this new person of interest, followed by an interview with the suspect's sister, who links her sibling directly with Kenley's disappearance.