User blog comment:ReverseZoom101/Weird things in yesterday's Flash episode!/@comment-25280771-20160420190029/@comment-3221148-20160422162012

On Jay Garrick existing, this is what Berlanti said:

"For those inquiring, we love Jay Garrick and would never make him a baddie. No reinvention. Keep watching :) love that you're asking q's."

The thing is, we've never met the Real Jay Garrick, who may not look like Teddy Sears at all. The Man in the Iron Mask may indeed be him: Hunter-2 could have kidnapped Real Jay early in his carreer, put him into the anti-speeder cage, then assumed his identity as both a civilian and a superhero, moonlighting as both Flash and Zoom to "give people hope, so he could take it away from them".

Why doesn't anybody recognize Hunter as "Not Jay Garrick"? Well, remember that Hunter is a serial killer and Real Jay could have been an average Joe. Hunter could have switched to Zoom, hunt down all friends and family of the Real Jay, maybe even forge state documents (what can stop a speedster, walls?)

BUT, the man you may have grown to love on Earth 1? That wasn't the real Jay Garrick, that was Hunter Zolomon, Zoom. Except for a small time window during the crisis on two Earths, where he needed an alibi to be on both, and thus dropped a Time Remnant to die on Earth-1. I think we can even pinpoint the time window: when Pesudo-Jay "goes to sleep" on Earth 1, Zoom JUST makes it to his lair to ambush Killer Frost, THEN on Earth 1, after a whole attack of the Geomancer that would have DEFINITELY awake him, a Pseudo-Jay just awakes, saying "sorry I'm late" to the girls that managed to defeat Geomancer on their own. This "Jay goes to sleep" moment is the time window where the "main" Hunter Zolomon escaped Earth 1, changed to Zoom, threw the Time Remnant on Earth 1 to act as him, then came to his lair on Earth 2.