The state’s thinly credentialed experts said it was Trayvon, but O’Mara brought in some real experts who poked all kinds of holes in their claims and their methods and frankly made them look ridiculous. The real experts didn’t say it was Z, just that there’s no way to determine identity from a single short scream recorded by a cellphone using audio analysis. The judge apparently found them persuasive.
It wasn’t cellphone recordings, it was the 911 call tapes.