MHGinTN is absolutely correct and numerous people on FR know it as well.
From the Charleston Conservative Examiner:
1. The witness reports that George Zimmerman was on the ground and Trayvon is on top of him punching him.
2. The witness says that George Zimmerman was screaming and yelling for help.
3. Police arrive and find Zimmerman bleeding on his face and the back of his head. He also has had grass stains on his back. All this confirms the story told by Zimmerman and the witness.
4. Police play the 911 tape for Trayvon Martin’s father, who tells police that the voice screaming is not the voice of his son.
Trayvon Martin was a towering 6’2” football player.
a “towering” young man < a short guy with a loaded gun