Did Han or Greedo shoot first?

Here's what George Lucas himself had to say on the matter:

"Well, it's not a religious event. I hate to tell people that. It's a movie, just a movie. The controversy over who shot first, Greedo or Han Solo, in Episode IV, what I did was try to clean up the confusion, but obviously it upset people because they wanted Solo [who seemed to be the one who shot first in the original] to be a cold-blooded killer, but he actually isn't. It had been done in all close-ups and it was confusing about who did what to whom. I put a little wider shot in there that made it clear that Greedo is the one who shot first, but everyone wanted to think that Han shot first, because they wanted to think that he actually just gunned him down."

I'm really starting to think Lucas is crazy now.  Did he forget that the way HE directed the scene and the way Harrison Ford played it indicated that Han Solo did indeed shoot first?  Me must've, since in every updated version he changed the scene to include a wider shot of Han unnaturally jerking his head while Greedo shoots at him.  You know, with the gun he had pointed at him the whole time, giving Han every reason to shoot first (and not be a "cold-blooded killer").  Tsk tsk.  Video below, from ComingSoon.