(CBS) Testifying for the defense during a pre-trial hearing Thursday, an FBI voice-recognition scientist said that he didn't believe it was possible to identify who was screaming in the background of ...

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(CBS/AP) SANFORD, Fla. - An expert in voice identification hired by an Orlando newspaper testified Friday that screams for help heard on a 911 call made the night teenager Trayvon Martin was killed do ...

Who is screaming for help is at the heart of the George Zimmerman murder trial. June 7, 2013— -- Two forensic experts testified today that they believe the voice of someone screaming for help ...

a progression in their sound, and Steinhardt is confident they executed their vision perfectly. It’s more common than not for a band of Screaming Females’ stature to defect from the label that ...