Detailed text transcripts for TV channel - MSNBC - 20120403:05:03:00
Patient. in the audio you can hear dispatchers saying a second ambulance was not needed to go to the scene and as you can hear rescue workers asking, they are asking for a medical helicopter for trayvon martin. >> contact air care and ask them to respond. >> we are on the line with air care. air care not available. >> in what could be one of the most important developments in the case, two forensic voice identification experts say the cry for help on the 911 call, on the night of the shooting, was not the voice of george zimmerman. joining me now are tom owen, forensics expert and chairman eme...