The 911 call in which Zimmerman says that Trayvon had run away.
Was he running away from GZ? Was he running do to 'fear'? How do we know this?
That depends on a lot of factors. How, where, why, the tone of voice, the actions and words which preceeded the question, the body language of the people involved, all have a bearing. All of these factors could easily lead a rational person to conclude that they are in immediate danger.
I don't think so. I don't think if someone asks you a question, you immedietely have the right to respond with force. If TM was so afraid that he started running, why did he stop at some point? Why didn't he run straight to his house?
Always? If you are on foot, at night, walking home in the rain, and some strange guy chases you for a couple blocks before catching you, it really would not much matter WHAT he asked you. You would be at the very least concerned, and likely frightened as hell. Even if the guy came panting up and asked you if you have seen his lost puppy, you would be scared. And if he seemed in any way aggressive or otherwoise creepy you would be completely justified in defending yourself.
But again, there is no proof this happened at this time. There is no proof or evidence that TM was running away from GZ.
Particularly if you were a kid.
We want kids to aggressively defend themselves from adults who threaten or frighten them. That's what we teach them. We want them to immediately scream and kick and bite and do everything in their power to disable the creep that's frightening them. It is our job as adults to never put kids in a situation where they feel threatened, and if we do and they react the fault is assumed to be OURS. If Trayvon defended himself he was only doing what we expect and train every kid to do.
Zimmerman violated those basic rules. He chased around an innocent kid, at night, and against police instructions. He eventually caught him and killed him. Everything else that happened is irrelevant.