Jeantel said she did not mention Martin saying, "Get off, get off," and some other details at the time because she did not know they were important. She said she believed Martin's killing was racially motivated "because of how the situation happened."
Jeantel denied that Martin's reference to Zimmerman as a "creepy-a** cracker" was a racial comment.
West suggested that a sound Jeantel heard over the phone of someone being hit could have been Martin punching Zimmerman, but she insisted that Martin would have told her if he planned to start a fight.
On Thursday, prosecutors also called two more residents of Twin Lakes to testify.
Twin Lakes resident Jenna Lauer testified about the 911 call she made the night that Martin died. She said she heard loud voices around 7 p.m. and then heard scuffling and sounds like sneakers on pavement and grass.
Lauer said she heard someone call for help and then a gunshot. She said she could not tell if the voice was Zimmerman's, and she could not identify the person with the gun.
Resident Selma Mora took the stand and testified in Spanish through a translator.
Mora said she heard something that sounded like crying while she was in her kitchen and went out to her porch. She said she could see two people, one straddling the other like a horse rider, but she could not identify them.
It was dark, but she believed the person on top had black and red clothing. She went outside and asked what was going on. The person on top did not respond at first, but he eventually said, "Call the police."
The person on the bottom was not moving at all and he was facedown.
She described Zimmerman as acting "in a concerned manner" after the shooting. O'Mara noted that, in a deposition, she had said he looked "confused."
Witness describes MMA-style "ground and pound"
Another Twin Lakes resident, Jonathan Good, testified Friday morning.
The back of Good's home faces the courtyard where the shooting occurred. He said he heard a faint noise outside while watching TV and went out to look.
He testified that he only saw a few seconds of the fight, but there were two people on the ground, the one on the bottom wearing red and white clothes and the one on top wearing dark clothes. He said he heard the gunshot after he went back inside to dial 911.
"It looked like a tussle. I could really only see one person, and I think I described it as possibly being some kind of dog attack, because there are a lot of dogs that walk in that back area. I could only see an object," said Good.
On cross-examination, Good said he thought the person on the bottom was yelling for help. After viewing pictures of what they were wearing that night, Good said Martin may have been on top of Zimmerman during the fight.
Good used a sketch to show the positions of the two when he first saw them, where they were and the position they were in when he went back inside.
Good testified that he added more information as he gave more statements to police, but his basic story never changed and he said the person he believed to be Zimmerman was on the bottom.
He described Zimmerman and Martin as being in a Mixed Martial Arts-style "ground and pound" position, but he could not say with certainty whether punches were actually being thrown. He did not see the gun.
Timothy Smith, the first police officer to arrive at the scene, also testified on Friday, making some observations about Zimmerman's clothing that seemed to support Good's version of events.
In regard to Zimmerman's jacket, Smith said, "The back of it was wetter than the front of it. It was also covered in grass." He also described the back of Zimmerman's jeans as "wetter than the front" and agreed that this was consistent with someone lying on his back in the wet grass.
Smith said that when he asked Zimmerman whether he saw who shot the person on the ground, Zimmerman told him he was responsible and that he was still armed. Smith said he proceeded to remove his own weapon and point it at Zimmerman. He then handcuffed Zimmerman and eventually took his weapon away.
On their way to the patrol car, Smith said Zimmerman volunteered some information about the scuffle.
"He stated to me that he was yelling for 'help' and that nobody would come help him," said Smith.