She surmised, did she? Obviously, Trayvon terminated the call. If the headset had merely fallen, she would have been able to hear quite a lot. The shouting and the gunshot are audible on at least one of the 911 calls, which were over phones a lot further removed from the site.
Hopefully, T-Mobile has exact call times. Cell carriers keep their computer clocks dead accurate.
You are correct. I find her testimony to be a bit suspect because she has not been identified and the Martin family attorney refuses to give her identity to anyone but federal investigators. Federal investigators from Eric Holder's justice department, who have already been on notice to give "his people" a pass.
I would very much like to be able to see and compare all the phone records for this case and compare the time lines. From what I can tell, there is at most a one minute gap where there are no phone records. It may be that the gap is entirely nonexistent.
Yes, she surmised. Here is what she said from the previous link: "Then somebody pushed Trayvon, because the headset just fell." That's the end of her comments in the ABC interview. Now, whether or not she heard more, or if the phone broke, or Trayvon terminated the call, that's not public knowledge as far as I know. The police should have the exact time that the call ended, so they are in a position to question her if the call continued.