I don't know where this whole "running after" him thing came from. It didn't happen, neither did Zimmerman "stalk" Trayvon. Stalking is defined as a continuous pursuit over an established period of time, say weeks or months, not a general surveillance that Zimmerman was doing as part of his neighborhood watch.

What I don't understand, is if Trayvon really felt so threatened to the point where he felt the need to ambush Zimmerman, why didn't he just go and ask him why he was "following" him? Oh wait, because he wasn't the sweet little angel that the media portrayed him as. He was, for all intents and purposes, an angry thug.

Normal people don't just try to go Rambo on someone if they feel like they're being followed. Hell, I've walked home from train stations late at night and had people take the same path as me, for several blocks. Was I a little leery? Sure, but I wasn't going to just turn around, mount them and start bashing their heads into the ground. And if I did feel truly certain that I was being followed, for whatever reason, I would try to alter my path or maybe double back to see if that person was doing the same, THEN I might ask them what they were doing.

And for the record, a 911 operator has no legal authority. It would be the same thing as dialing zero and asking for their instruction. Now, if you had an actual sworn officer telling you what to do, then that's another story.