IF big ol whopping IF Trayvon jumped him, but how do you get around the fact that it is simply not logical or even reasonable to presume such a thing?
Trayvon did not know Zimmerman, and had no feelings of animus towards him at all, he did not deliberately seek out Mr. Zimmerman, he was being followed by Zimmerman, which would be enough to cause him some anxiety as to why someone was following him, but he was doing nothing wrong, he was not in fear that something illegal would be found on him, or that there was anything untoward going on except that someone who appeared to be a little weird was following him.
Not so George Zimmerman, he was invested in this chase, it is apparent because he ignored everything that he had been told in Neighborhood watch meetings and everything he had to read and sign when he got his permit to carry and anything he was told in the classes that he took. It is obvious that he KNEW that Trayvon was a criminal, and also obvious by his own words that he was not going to let this one "get away"
Which person of the two had the incentive to escalate a confrontation?
Unless you are willing to say that it must have been Trayvon because he was a teenageboy, who did the things that teenage boys sometimes do before they figure out which persona is really them, or unless you have some deep seated conviction that because he was a teenager and black that he HAD to have a hair trigger temper and would obviously be the one to strike first, then there is no reason to believe that Trayvon would have initiated a confrontation which he had no interest in, and every reason to believe that George Zimmerman would because he was completely invested in it. It is also reasonable to note that even if Zimmerman did in fact start the confrontation, once he had killed Trayvon, he was the only one left standing to tell the tale, and it is entirely in his interest to claim that Trayvon started it by attacking him, since I am reasonably sure he really doesn't want to go to jail. IMO JMHO and stuff.