User blog:Gracchus Mccarthe/Zoom's prisoner: my theory.

This is ridiculous, but I'm not one to claim to be sane.

Wally West/Jay Garrick: Joe West's son is named "Jay Garrick" for some reason. Perhaps he was adopted when his mother died (when he was young, since it's E-2). He had super speed, but Zoom took it away from him.

Why wouldn't Zoom just kill him? Well, regardless of who the guy is, I think there's no good answer. Thus, I'll be unfair and say this: Zoom is a psychopath, and he's having more fun keeping the guy locked up than he would have killing the guy.