Simon

Member of John's team present at the funeral. Simon is referenced as the forensics expert on the current homicide case. Lead forensic officer at the crime scene, gives Mark a tour and describes the victim’s condition. Simon remains silent and watches the recording with the rest of the team. Lab tech reports two sets of prints, one unknown possibly belonging to Jodie. Participates in conversation and offers subtle commentary Detective Simon observes the scene, noting the mask, poem and the significance of the drawings. Present in van and hospital briefing, provides input on case dynamics Simon streams live footage from his van, provides the building layout of the six‑flat block, and shares photographs of spider‑web drawings from various crime scenes. Simon is mentioned as having logged off before the 4:10 A.M. argument between Greg and Mercer.