Han shot first, but what if he didn’t?
io9 Asks, “What If Greedo Really Shot First?” It turns out Greedo is a total badass:
[I]t’s Han Solo’s head that Greedo tosses, to Chewy, who catches it with an anguished growl. Chewy pulls his blaster, but he’s still holding the head of his beloved captain in one paw, making his reaction time considerably slower. Chewy does get off one shot, but Greedo ducks behind Boba Fett, who catches it square in his unprotected neck area. Greedo shoots Chewbacca before he can get off a second shot, and it’s all over.
All hail Emperor Greedo!