If the charges put to FA in the past are to be believed, he is capable of getting away with murder.
If FA is responsible for William’s disappearance & PS witnessed something, I can believe he would take a threat from someone like FA very seriously, at the time he had a wife & he has a daughter, perhaps Grandchildren even?
Maybe PS slipped up in a conversation with Jubes along the way, I can see after almost five years & an inquest on the horizon Jubes going at him hard in an effort to get him to crack.
Has the Coroner had access to the recordings, maybe in a closed court?