Not true. Martin was on the cell phone to his girlfriend when the confrontation started. She claims she recorded the conversation.
...She said the next thing she heard was Martin saying, Why are you following me? Then, Crump said, she heard another voice presumably Zimmermans saying, What are you doing around here?... (From: 'HE'S RIGHT BEHIND ME')
Since she says she heard Martin speaking to Zimmerman first, then Martin was the one initiating the confrontation.
As evidence her statement has no value...it is unsubstantiated hearsay.
And, I would be careful about using her statement...it has zimmerman still following martin, not returning to his truck.