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>> did he lose mike? maybe we can get you back. for more on the story let me bring in michelle bernard from the bernard center for women, politics and public policy and e. steven collins who hosts "philly speaks" on wrnb. one of the questions surrounding the 911 calls made the night of the shooting is just who is heard screaming for help? let's listen. >> so you think he's yelling help? >> yes. >> all right. what is your -- >> there's gunshots. >> two forensic audio experts who analyzed the 911 calls for the orlando sentinel say the screams were not from zimmerman. one of the experts interview...

Csi unit was there. all gathering what one fbi official told me is going to be a meticulous comprehensive investigation of everything that took place that night. >> did he lose mike? maybe we can get you back. for more on the story let me bring in michelle bernard from the bernard center for women, politics and public policy and e. steven collins who hosts "philly speaks" on wrnb. one of the questions surrounding the 911 calls made the night of the shooting is just who is heard screaming for help? let's listen. >> so you think he's yelling help? >> yes. >> all right. what is your -- >> there's...