well if GZ was prescribed drugs that a lot of people abuse, let's just go ahead and assume he was abusing them!
This despite his very calm, normal speaking voice on the NEN call. He did not sound like someone fucked up on anything, at all. Usually people who are don't seek out direct contact with police, either.
Even his "these assholes" and "fucking punks" comments were spoken in a very calm, matter of fact way. Any person who has ever tried to frame those as evidence of murderous intent, let me be very clear about this, is a HUGE dumbass. Like, really really huge. They sound like nothing other than expressions of mild frustration and hamfisted attempts at bonding with the call center worker and by extension law enforcement.
I don't think every black person looks like they're high on something. Know which ones don't look like that? The ones who aren't. The ones who stand up straight, walk properly, and get in and out of the 7-11 like a normal person. Lingering around the candy bar aisle taking a long time to figure out what you want is one thing, lots of people do that, that's not what Trayvon did. He couldn't stand up straight and reach into his pocket at the same time, at the register.
He got lost trying to leave the store. The guy looked like he was tripping on something. Whether that be purple drank, weed, bath salts, something else, some combination... I don't know. Whatever it was probably played a part in why he attacked GZ. That's a shame, because maybe it indicates he wouldn't have done that if he was completely sober. Just another reason not to do stupid shit like drugs, I guess.