The mother and brother of Trayvon Martin told jurors on Friday that screams captured on a 911 tape came from the teenager, shortly before he was fatally shot.
As Sybrina Fulton took the stand, prosecutors played a tape of a 911 call made the night Martin was killed. The defense has argued that the screams heard in the background of the call belonged to George Zimmerman, who is on trial for second-degree murder. He has pleaded not guilty, and has said he shot Martin in self-defense.
"I heard my son screaming," Sybrina Fulton said.
Being able to identify who was screaming is important in the case because it could prove who was the aggressor in the encounter. Zimmerman, 29, has said Martin was beating him, and that he shot the 17-year-old because he thought he was reaching for his gun.
Martin's older brother, Jahvaris Fulton, also said on Friday he recognized the screams and that it was Martin's voice on the tape.
But during cross-examination, defense attorney Mark O'Mara asked Jahvaris Fulton about an interview in which he told a reporter he was not sure if it was his brother's voice on the tape.
In court on Friday, however, Jahvaris Fulton said he was "shocked" and that he was "hoping" that it wasn't his brother's voice on the tape.
O'Mara also suggested that other people who listened to the 911 tape could have influenced Sybrina Fulton. O'Mara asked her about when she heard the tape, and whether she was "holding out hope" that her son did not contribute to his own death, the Orlando Sentinel reported.
"I didn't hope for anything," Sybrina Fulton said. "I simply listened to the tape."
If it were Zimmerman's voice that was captured on the call, that could mean that Martin had done something to cause his own death, O'Mara argued.
On Friday, jurors also heard from Shiping Bao, the associate medical examiner who conducted Martin's autopsy. Bao testified that Martin likely lived for several minutes after he was shot.
"His heart was still beating," Bao said, according to the Orlando Sentinel. "He was still alive, he was still in pain."
Earlier in the week, the jury also heard from Anthony Gorgone, a Florida Department of Law Enforcement crime lab analyst.
Gorgone testified that none of Zimmerman's DNA was found under Martin's fingernails nor on Zimmerman's gun grip, despite the defense's claims that the teenager was attacking Zimmerman.
After nine days of testimony, prosecutors are expected to rest their case on Friday. Defense attorneys may ask Judge Debra Nelson for an acquittal arguing the prosecution's case is insufficient. It will start calling witnesses if that request fails, the Orlando Sentinel reported.