First, the black guy struck first.
Second, the white guy stopped hitting him once he was down.
Had he continued to wail on the black guy after he was down, and no one was stopping him...and the black guy believed he was in danger of death or grievous bodily harm, he would have been within his rights to use lethal force to stop the attack.
But it didn't come to that...white guy ended the threat to himself, and walked away.
Had Martin done that, he would be alive today.
"struck first" chest poke at best.. yeah the black guy pushed him .. just as Zimmerman pushed Trayvon by chasing and chasing and chasing then reaching for his pocket when asked who he is why he's following him..
The white guy stopped hitting him probably because there were witnesses, because he probably had bad knees, and also because he's probably a better man than either Zimmerman or Trayvon. BS that gang banger did not pull a gun probably because he didn't have one and/or because there were witnesses.
There are no facts here, just emotion and speculation.
Look at the diagram of the scene...there was no "chasing and chasing and chasing"...that's a figment of your imagination.
"The white guy stopped probably stopped because..." more speculation and imagination.
He stopped...that is a fact...you should learn to recognize them.
Here are some examples:
Marin did not stop until he was forcibly stopped.
Another fact.
Following someone does not justify a physical attack.
Another fact.
Reaching for a cellphone after saying you don't have a problem is not just cause for being physically attacked.
These are the facts.
Now, show me your FACTS.
Not your feelings.
Not your speculations.
Not your overactive imaginings.
Just the facts.