The Flash So2e15: Zoom unveiled

I know right? We are all shocked to find out Jay (not sure if that's what to call him) is zoom. There are just so many things wrong with this revelation.
First of all,is jay a twin? That would mean zoom should have a dopple ganger on earth 1,why didn't jay find him when he needed help with gene stuff. Why did jay not mention this all along? Wells seems to have a familiar relationship with zoom based on their previous encounters,why didn't he mention this also?
Well this explains the clue the other prisoner (no name yet) was trying to give barry while he was imprisoned by zoom but who is this mystery guy. Their father?, A brother? We could only wait to find out.

Many theories could go with this new discovery. Perhaps jay and zoom both got their speed at the same time and then zoom was able to make himself faster through scientific means  while jay caused his own cells to respond negatively.
Another theory could be that the prisoner is also a speedster but zoom stole his power to become faster, he seems to be familiar with speed theft that's why he told wells to steal Barry's speed. Zoom didn't seem to kill jay on purpose with his statement "well,this is a complication".
So this is how I think its going down,zoom is going to mix up with Barry's team as jay to figure out a way to steal his power. So its either Barry opens the portal or zoom does.
There are still a few things wrong with this move because Caitlin should be able to discern he is not the one but they wouldn't be expecting an evil twin right? Asides that zoom has a build that's way bigger than jay unless its just the suit. Also,there is the voice factor.
But its DC comics, they can do anything.

What's your opinion guys, who is the prisoner?