Han was never a “cold-blooded killer”. Greedo was gonna kill Han no matter what. He had just said so!
…
Han’s actions were perfectly justified.… His life was threatened and he was at the wrong end of a bounty hunters weapon. In that moment it is kill or be killed.
I don’t understand how George can be that far removed from reality …
Well …
The New York Times Magazine (2012) - George Lucas Is Ready to Roll the Credits
… Lucas said, “I’m a ’60s, West Coast, liberal, radical, artsy, dyed-in-the-wool 99 percenter before there was such a thing.”
We’re talkin’ “agenda” here. Lucas is an Orwellian propagandist – he says one thing when it suits him, and then a different thing when that suits him. That’s probably why he’s always so glum. Nobody is getting all his secret meanings; and when he spells it out, nobody cares about his secret meanings. They think Star Wars is about spaceships (for the boys) and sex-symbols (for the girls). And it is! 
Poor George.