I'd like to know what Zimmerman was doing

... between the end of his 911 call and the start of the altercation. He had 3 or 4 minutes to get back there, but hadn't arrived; moreover, the altercation occurred closer to Trayvon's home rather than closer to Zimm's vehicle. (Meanwhile, Trayvon was on the phone with his girlfriend until just before the altercation began). To me, this makes Zimm's claim of returning to his vehicle suspect. I suppose they can't disprove Zimm's claim, but I sure would like the question to be asked.

I am glad to see the questioning of the injury claim. That has been what I have found unlikely since the beginning.