#1 tip-top arrangement for covering up an assassination---kill the accused assassin. There will be no trial to worry about.
Jerry, you are right. I read somewhere that it was an old Sicilian mafia technique; set up a patsy, kill the patsy with someone unacknowledged about the plot and eventually kill him. There is a very interesting book about Dorothy Killgallen called "Dorothy Killgallen - The reporter that knew too much" about her interviewing Jack Ruby during his trial and her going down to New Orleans digging up information. She was going to go down a second time but she was murdered before she could. The night she was murdered all of her notes about Jack Ruby went missing.
I believe Oswald was supposed to be murdered by his co-conspirators prior to his run-in with Tippit. Oswald’s arrest wasn’t part of the original plan. Once he was in police custody, Jack Ruby was one of the few underworld-connected people who were able to get close enough to take him out.Ruby wasn’t an ideal assassin but he was in debt and had Cancer...