All real Star Wars fans know that Han shot first, but legally, was he justified in doing so or should the Empire go after him for murder? Well, ccording to The Legal Geeks:
Without a doubt, having a blaster pointed directly at Han put his life in danger. Additionally, Greedo’s statement “That’s the idea. I’ve been looking forward to this for a long time,” communicated Greedo’s intent to kill Han. Shooting first was the only away to prevent Greedo from using deadly force himself.
See George, you didn't need to edit it so Greedo would shoot first just to make Han look like a good guy.