Who they were
Jack Ruby shoots and kills Lee Harvey Oswald two days after the assassination. Jack Ruby shot Lee Harvey Oswald in the basement of Dallas police headquarters on 24 November 1963, live on television.
Inside the story
Spoiler warning — this section reveals what happens to Jack Ruby in the Utopia Series.
Jack Ruby receives a strange telephone call; a sequence of tones triggers a conditioned state. Jack Ruby participated in government experimentation Ruby had previously participated in experiments involving LSD and electrical stimulation without understanding their real purpose. Jack Ruby is conditioned through previous experiments and activated by Maheu via telephone trigger. Jack Ruby kills Lee Harvey Oswald to remove him before he can expose inconsistencies in the assassination story. Jack Ruby connects to Maheu in Manchurian Candidate-style Utopia plot. Jack Ruby was subjected to behavioural conditioning experiments involving LSD, electrical stimulation, and programming. Jack Ruby was unknowingly triggered by Maheu to eliminate Oswald and prevent revelation of inconsistencies with the official narrative. Jack Ruby establishes theme of behavioural programming in Book 1, potentially linking to Lennon in later material.