There are moments in history that come down to a single decision, a fleeting moment, a choice

that can't be undone.

On November 24, 1963, Jack Ruby made one of those choices.

In the basement of Dallas City Hall, Jack fired a single shot into Lee Harvey Oswald as

the world watched in real time.

It's a moment that's been replayed for decades, slowed down and analyzed frame by frame,

the flash of movement, the crack of the gun, and the instant Oswald collapsed.

We know exactly what happened,

but what's less clear is why it happened.

Because while the act itself was captured on film,

everything behind it wasn't.

What was going through his mind in that moment?

Was this something he had planned,

or something that unfolded in seconds was it calculated or was it

impulsive and more importantly what was driving that decision in the moment he stepped forward

the prosecution told one version of that story a version rooted in action in in pattern, and in choice.

But the defense told another, and that's where this case begins to shift.

Because to understand what happened in that basement, the defense argued,

you have to look beyond the footage and beyond the moment that everyone remembers.

They said you have to look not just at what happened,

but at what was happening inside of Jack Ruby in the seconds before he did it. The prosecution

says this case is simple and that the footage speaks for itself. The defense says the truth is

...