A new video from Trayvon Martin's phone has been released. It's from an unrelated incident, but could be critical if it can authenticate his voice.
Experts dispute whose voice is heard in the background of a 911 call from the night Trayvon Martin was shot and killed by George Zimmerman.
Police detective Chris Serino wrote in an early report that he could hear a man yelling “Help” or “Help Me” 14 times during the Trayvon Martin 911 call.
Prosecutors say the voice is Martin’s. Defense lawyers say it could actually be George Zimmerman, who they say was being pummeled by Martin.
Now, as Zimmerman prepares to go on trial for second-degree murder, a video has been released that the defense says could authenticate the 911 call.
Lawyers for Martin’s family say it doesn’t belong in court, however.