Published January 13, 2015
It's become a top goal of lawyers in the George Zimmerman trial to convince jurors of whether he or Trayvon Martin can be heard on a 911 call.
Defense attorneys called five of Zimmerman's friends Monday to testify that it was his voice yelling for help on the call.
Zimmerman's attorneys also called two police investigators who contend Martin's father, after hearing a recording of the call, initially said it wasn't his son.
Martin's father, Tracy Martin, came to the witness stand, and he denied ever saying the screams for help weren't his son.
Convincing the jury of who was screaming for help on the tape is important to both sides because it would help jurors evaluate Zimmerman's self-defense claim.
https://www.foxnews.com/us/911-calls-becoming-heart-of-george-zimmermans-trial-as-the-defense-presents-its-case