Wow, either her story has changed or you have things out of sequence.
Martin asked Zimmerman why he was following him,then Zimmerman asked Martin what he was doing here.
This was followed by sounds indicating a scuffle had begun.
“The girl said Trayvon must have been pushed because his headset fell off and the phone call ended.”
Tracy Martin is Trayvon’s father. He was recounting the sequence of events as told to him by the police.
Dee-Dee is the girl on the phone. I don't believe the police have ever interviewed her.