Do you realize how often stunt doubles are used in action movies? Try every single time. You have NEVER seen an action movie that did not include the use of stunt doubles. And yet, how many times have you watched an action movie and said, "That was a double!" For most people, the answer is: NOT EVEN ONCE.
At the following link, you can see famous actors standing with their stunt doubles:
The Garage Shooter was a stunt double for Jack Ruby. It's as simple as that. Stop fighting it.