After a physical confrontation, Strike subdues the killer and recovers evidence for his conviction.
Strike eventually identifies as the killer, who had framed Strike for the murder of a teenage girl, Kelsey Platt. C.B. Strike S03E02 FRENCH HDTV
Robin takes significant risks to investigate Brockbank alone, even tracking down his new girlfriend to warn her about his past. This leads to a major conflict with Strike, who temporarily fires her for gross misconduct to keep her safe. The Resolution: After a physical confrontation, Strike subdues the killer