I am surprised the prosecution is even putting her on the stand. If she “identifies” the voice as being Trayvon’s, why wouldn’t the defense be able to introduce the expert’s opinion that the voices are unrecognizable?
If I were the prosecution, I’d never put her in a position to destroy what little case I have by trying to get her id the voice. All she has to do is say something that reflects on Trayvon being a good son and the dam will burst for the prosecution. Too much bad...not enough good...to call her.
The FBI voice expert said a relative might be able to recognize the voice.