The attacks on the character of the defendant and Martin were both unwarranted
I fully disagree. Showing that Zimmerman's character was a particular way shows if he has a grudge and had any more intent when getting out of the car with his weapon. The character of the dead, however, is not only entirely moot, as he is not the one on trial, but also cannot be defended as he is unable to be present to do so (owing to the whole being shot to death thing).
For the rest of that, he wasn't the aggressor. Trayvon followed Zimmerman knowing that he (George) had lost him (Martin) and was returning to his vehicle.
Failing on a spot vs hide check ends the encounter? As long as Martin felt his life and safety were genuinely at immediate risk (it's entirely possible he felt Zimmerman was headed back to the car in order to catch up with him again - unfortunately we will never know, thanks to Zimmerman's actions), he is still being affected by that initial aggression.
EDIT: Wanted to address this more clearly, and correct an error (identified fallacy as strawman, is actually slippery slope)
It's actually reduction to the absurd. The difference (which so many people miss, especially when using the labeling of something as a fallacy in order to avoid addressing it) is that slippery slope is used to say another separate item will occur because this item has. Such as, because gay marriage, beastiality. Reduction to the absurd is used to say that this individual principle will have unexpectedly absurd consequences. Such as, because gay marriage, shortage of really fabulous tuxedos.
This individual example is "If no longer being able to see the consequences of your aggression makes you irresponsible for them, this absurd example fits the principle."
The self defense on a robbery with stand your ground falls into the same category. And is
already being attempted.
He admitted to killing another human being. He is guilty by confession.
yes, he killed a man and confessed to it and is guilty. The difference between murder and self-defense (and others) are the circumstances.
the stand your ground gives more leeway than the standard self-defense circumstances allow.
And this extra leeway is a huge issue with the law itself, as is the interpretation that it lets the initial aggressor of a situation still claim defense.
But what I was referring to specifically there was that I still believe the burden of
proving self defense lies with the one making the claim (as is the norm when making a claim).
There is no presumption of innocence for the killing, since it has already been admitted to. But if you wish to claim there was a particular reason for it that sets it aside as protected circumstances, you must prove it.
And a valid reason you would not be able to prove that, would be, for example with the Michigan law quoted, if it was proven you
were conducting illegal activity, such as stalking (while carrying a deadly weapon) someone because you have a predecided grudge against people who look like them.