There is a reason that Trayvon Martin's family hasn't released an exemplar of his voice, IMO.
It's interesting that there doesn't seem to be anything in the discovery to show that any of the investigating agencies ever asked for one. The Martins are on record saying they don't have one because a journalist asked them.
If it is still there, can he, through his experts, make his own exemplar of it for comparison?
I don't know why not. But the FBI experts had studio samples of Zimmerman's voice actually yelling 'help', and reached no conclusion.
I can't imagine they would erase that recording of their son.
We've been over this. The authorities have the phone.
I think the Martins would erase it if they could.
From the 7-11 audio it seems like Trayvon had a remarkably deep voice, deeper than Zimmerman's, whose voice I would say is about average for an adult male. But it's hard to tell because of the ambient noise.
If the public could hear a clear sample of Trayvon's voice, it just might blow away all the talk of a screaming young/little boy. At the moment I think that would matter more to the Martins than the sentimental value of the recording.