Zimmerman may have kept his blows less than full-strength, knowing he had the gun.
That is one of the stupidest things I've yet heard on here, Quick! Seriously...get a grip. The two men had a confrontation and Martin suckered Zimmerman in the face. It happens thousands of times every night all around the world. The next thing you'll be telling us is that Zimmerman hit Martin in the fist with his face to make it LOOK like Martin attacked him.
Fights happen for many reasons. To insinuate that is ok or legal to use that as an excuse to kill someone is the stupidity.
You assume it was a mutual fight.
Zimmerman was being beaten to death and he had the right to defend himself.