Long Bright River Season 1 Episode 4: Blind Spot

Mickey shares with Truman that Paula said the culprit is a cop and that Dock had a tight alibi. A 2005 flashback places the girls at the police youth club, where Kacey met Paula and Mickey met Officer Cleare.

Truman learns Jimmy Scanlon had a secret bank account funded by S.O.K. Holdings and was meeting a woman named Melissa. Mickey responds to a domestic-violence call and arrests the husband, who claims to remember her.

At Thomas's birthday party, Officer Cleare arrives and is revealed as Thomas's father; he refuses to stay and leaves with a new partner after a fight with Gee Pop. Mickey is forced to manage Thomas's distress.

Mickey discovers that all the victims attended the police youth club and that Simon was the counselor to all of them. A flashback shows Cleare encouraging Mickey toward music school while a young Kacey struggles with drinking.

Mickey tells Truman she believes Simon is the culprit, because Simon is still a cop and counseled every victim.

As of S1E4, Mickey suspects Simon is the culprit because he counseled all the victims, but this is her theory, not a confirmed fact within the episode.

As of S1E4, Simon's whereabouts and involvement are not established beyond Mickey's suspicion.