[referring to Mamo's promise of eternal life]

That's awful. Everything was a lie.

Not necessarily. I'm certain that he was doing some research on immortality.

Don't be ridiculous. That's impossible.

Cloning.

Huh? What?

It's a recently honed human-manufacturing technology. By taking a cell from someone's hair or any part of one's body, and giving it a little twist, you can create an exact look-alike. If you repeat this process, the same individual could live for an infinite length of time.

If that is true, then the guy who was you and got executed was...

From a single hair, you can make a copy...