Responsible would have been waiting for the real police to show up and do their jobs.<quoted text>
How much more responsible can you get? He was attacked, pinned down, no where else to turn before he resorted to using his firearm. Two black eyes, back of head smashed against the cement and a broken nose.
If Zimmerman had been out walking his dog, and Martin jumped him, that would be different. That's not what happened here. Zimmerman chased down an innocent kid because he thought he was a f'ing punk.