`` After 28 years of doing this , I would put my reputation on the line and say this is not George Zimmerman screaming . '' Zimmerman said , ` ` f -- -ing punks '' in the call , his attorneys say . Forensic audio expert Tom Owen believes the word was ` ` punks , '' not a racial slur . Owen provided CNN with a copy of the processed audio ' ` ` punk '' recording . Owen also believes that it was Zimmerman yelling on another 911 recording .
Zimmerman said , ` ` f -- -ing punks '' in the call , his attorneys say . Forensic audio expert Tom Owen believes the word was ` ` punks , '' not a racial slur . Owen provided CNN with a copy of the processed audio ' ` ` punk '' recording . Owen also believes that it was Zimmerman yelling on another 911 recording .