The prosecution wants to avoid these and other issues. I think the prosecution will ask one question only, do you recognize the voice on the recording. There may be some “how do you know” questions. The defense would then be restricted in their cross-examination and in any rebuttal to that issue. For the prosecution to “open the door” to whether Trayvon was a person of exemplary character, the defense would not only be able to cross-question the witness, but to bring in rebuttal witnesses and other evidence. The purpose of bringing the mother of the deceased is twofold: to remind the jury of the seriousness of the allegation, and to defuse the testimony of family members of Zimmerman that they recognize the voice to be his.
The prosecution does not have the evidence.
The prosecution does not have the witness testimony.
The prosecution does not even have the law on their side.
The ONLY stunt left to the prosecution is “runaway” jury doing a jury nulification to convict based on mommy emotion by playing the mothers on the panel.