Before you decide to believe Posner, may I suggest that you should read those who deconstruct him? Otherwise you have only one side. That’s the way the Democrats like to install “truth” from the top down.
Weisberg takes Posner apart; so do any number of other authors. I have read nearly a hundred books on the Kennedy assassination, not that it makes me an expert, I am not. However, I am aware of the issues in contention. Posner uses computer “analysis” from a company that has two positions it has produced, one confidently explains the one assassin theory, the other, multi assassins.
This company Posner used, uses the JFK assassination as an example of their wares to potential customers.
They claim they can “prove” just about anything.
Do you believe Oswald killed Officer Tippit?
IMO it’s a no-brainer that Oswald killed Tippit and that fact proves his guilt. Otherwise, how do you explain him shooting a cop in broad daylight at point blank range?
Similar reasoning destroys WTC conspiracists. They conveniently ignore the jet that hits the Pentagon.
Before you attack my ignorance, be aware that I have read countless books on the JFK assassination and have listened to all sides many times.