Analyst: Impossible To Determine Voice In Zimmerman 911 Call
FOX News: Hirotaka Nakasone, an FBI audio voice analyst who examined eight audio recordings related to the February, 2012, shooting of Trayvon Martin, said he was unable to identify or even peg an age to the person whose screams were heard on the tape. He said the pitch of one's voice goes "all over the place" under extreme stress.




