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George Zimmerman’s self defense claim came under fire early in the aftermath of the shooting death of Florida teen, Trayvon Martin. The Orlando Sentinel enlisted the assistance of Tom Owen, a forensic consultant for Owen Forensic Services LLC and chair emeritus for the American Board of Recorded Evidence, to analyze the voice data provided by the 911 tapes released by authorities. Owen used biometric voice analysis — a technology with a 70 year history of accuracy — to compare George Zimmerman’s voice to the voice heard screaming for help just before the gunshot rang out.

His result:

The voice screaming for help in the 911 recordings cannot possibly be that of George Zimmerman. An unnamed expert also solicited by the Sentinel came to the same conclusion even using different software and methods. The Sentinel reported:

I took all of the screams and put those together, and cut out everything else,” Owen says. The software compared that audio to Zimmerman’s voice. It returned a 48 percent match. Owen said to reach a positive match with audio of this quality, he’d expect higher than 90 percent. “As a result of that, you can say with reasonable scientific certainty that it’s not Zimmerman,” Owen says.

The same technology used by Owen here was used in January to identify a murderer from a 911 call nearly 10 years ago. The voice identification led to a conviction. The audio analyzed in the Martin case is reportedly “much better quality than the 911 call” in the previous case. “In our world, that’s the home run,” says Owen.

At this point, the lack of an arrest in this case is beginning to point to a cover up by authorities in the area who are very obviously connected to the Zimmerman family through George’s father, Robert Zimmerman, who is a retired Orange County area magistrate. This news comes just one day after the Huffington Post reported that Martin’s funeral director said he saw no signs of a struggle on the teen’s body. If there was any doubt of Zimmerman’s guilt, this new information should certainly clear that up.

In addition to all of the mounting evidence against him, we’ve also learned that a former coworker of Zimmerman’s described him as having a “Jekyll And Hyde” complex which fits his violent past, including assault on a police officer, domestic violence, and resisting arrest – charges which, interestingly, were expunged. The Huffington Post reported the following, quoting a former co-worker in the security field:

Usually he was just a cool guy,” said the former co-worker. “But it was like Jekyll and Hyde. When dude snapped, he snapped.” He was fired for being too aggressive with patrons. “He had a temper and he became a liability. One time this woman was acting a little out of control. She was drunk. George lost his cool and totally overreacted. It was weird, because he was such a cool guy, but he got all nuts. He picked her up and threw her. It was pure rage. She twisted her ankle. Everyone was flipping out.”

This is American Justice at its finest – in my opinion, there are strong racial politics at play in this case. It’s disappointing that there is such gross negligence governing this entire investigation. I wonder how things would have gone if Trayvon had a weapon on him and managed to defend himself against Zimmerman. What would be happening to Trayvon right now if the tables were turned and Zimmerman had died that night? Would the Stand Your Ground law protect him? My bet is… no.


Kat Robertson - Web Developer & Graphic Designer / Personal Trainer

The founder of Racially Charged is a 33 year old Atlanta, GA business owner – the Chief Designer at eDesign-Pro Company and Lead Personal Trainer at Fitness Rebooted. Married to her highschool sweetheart with five biracial children, Kat Robertson’s experiences in an 18-year-and-counting interracial relationship have sparked a passion to bring attention to racial prejudice, inequality, and injustice in the world.


  1. […] could possibly hinge on the answer to one critical question: Whose voice was screaming for help in the 911 call? The shooter, George Zimmerman who is claiming self defense has told authorities he was the one […]

  2. BiculturalMama April 2, 2012 at 7:37 pm - Reply

    Can the voice analytics confirm if the voice crying out for help was Trayvon’s? – Bicultural Mama

    • Kat Robertson April 2, 2012 at 7:46 pm Reply

      They can’t confirm that it’s his voice unless they are able to obtain audio of Trayvon, but that fact that it has been proven NOT to be Zimmerman’s voice only leaves one other option so that’s likely to be confirmation enough.

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