Yes, I said KILL. This is where the theorizing begins when I ask, "Why would Zoom kill the Flash?" If anyone doesn't know, Zoom is the one who killed Barry's mother, which started the chain of events that leads to the creation of the Flash...which in a few centuries leads to the creation of Professor Zoom... So what gives? Why kill him if he's never been allowed to before by the laws of space and time? Because he is a paradox...The Flashpoint Paradox. I believe this Zoom is actually the same Zoom that supposedly died at the end of the Flashpoint event, and here's why...
1: Why is he in the past as an old man?
The first major fact that helps prove this theory is his earliest appearance in the universe's history.. Despite him being from the future, he looks extremely aged in this panel from the comic. This would make sense if it was in the 26th century, but he is first seen in 1520, nearly 460 years before Barry's Mother's murder.
Not only is it that he's just in the distant past, but he's AGED in the distant past. This would mean he's actually been there for many years-DECADES EVEN! With age, apparently comes the loss of the magnificent powers of the Speed Force, and requires his aging to be reversed.
During the reset that came from Flashpoint, it sent Booster Gold from Pre-Flashpoint Universe into the future. This could mean that any time traveling hero or villain could be sent to any random point in time, speedsters included. While Gold ended up in the future and Flash ended up in the present, Zoom could have ended up in the distant past, only to begin plotting his revenge against the Flash.
3: HE'S SUPPOSED TO BE DEAD
THAT'S IT FOR THIS SPECIAL FANBOY THEORY! What do you think of the theory? What do you think would cause Zoom to kill the Flash? Leave a comment and I'll see you next time!