User blog comment:Flashdancer911/Zoom: who he CAN and CAN'T be... (theory only)/@comment-3423279-20160213172933

(3) Jay didn't ever take Velocity 6, he created something similar yes, but not that specifc serum. Harrison admitted that he never got that serum correct, and only after meeting Caitlin was it "perfected." Jay himself hasn't been suspicous I would say, more like Team Flash refused to trust him. Also, would you want to admit that the drug you took to make you faster is what is killing you and took your powers?

(4) E-2 Barry's ridiculously nerdy thing does make me wonder if he was hiding something, but Harrison would know if Barrytwo was Zoom.. I think.