What you cannot do, is assault and threaten the life of someone (a rightfully concerned citizen, and neighborhood watch captain) for following you or asking you questions. If you threaten my life, I have every right to defend myself.
We don't know that trayvon swung first or ever threatened zimmerman's life.
ZImmerman claimed trayvon punched him in nose to start it, then held his hand over mouth and nose - but NO blood or dna on trayvon's hands or sleeve.
Zimmerman claimed trayvon repeatedly tell him "you're going to die tonight", but all the witnesses and 911 calls never heard it.
And the ONLY thing that says trayvon swung first? Um, the less-than-credible ZImmerman's statement. He lies about those other 2 things, but he's legit on this? I dunno...
ON THE OHTER HARD, we do have audio evidence of him calling trayvon names, admitting trayvon trying to escape, admitting he's in pursuit, admitting he thinks trayvon is the bike thief.
Everyone keeps saying "Trayvon threatened his life", but there's not a lot of proof of that?