CNNW Anderson Cooper 360 April 6, 2012
conclusions so you can decide for yourself based on the evidence what happened that night. today, a leading forensic audio expert listened to george zimmerman's 911 call and weighed in on whether zimmerman uttered a racial slur as he got out of the suv to follow trayvon martin. it is important, because the federal government is investigating this as a possible hate crime. and the audio in question could be a major piece of evidence. the fbi is certainly treating it that way. they're doing their open analysis of the -- own analysis of the tape. a warning about the language. if you wan...