Zoom is Jay Garrick from Earth-3! Who is man in helmet? Flash Season 2

I explain why Zoom is Jay Garrick is from Earth-3, and how the man in the metal helmet is also Jay Garrick, but from Earth Prime.

This contains spoilers from the Flash Season 2 up till episode 14.

Please watch and enjoy! I love getting comments on the video, so please comment! Also please give me any suggestions for future videos!