2:36 p.m. ET: O'Mara says it seems fair to have Zimmerman's parents in court if Martin's parents can be in court.
2:33 p.m. ET: The judges says Benjamin Crump, the Martin family's attorney, should not be in the courtroom because he's a witness.
2:31 p.m. ET: Defense attorney Mark O'Mara argues that Zimmerman's parents should be permitted to sit in the courtroom during trial testimony, despite the fact that they're on the witness list.
2:29 p.m. ET: The judge has dismissed the jurors so she can take up a matter with attorneys outside of their presence.
2:28 p.m. ET: West disputes that Martin was unarmed.
"Travyon Martin armed himself with the concrete sidewalk and used it to smash George Zimmerman’s head. No different than if he picked up a brick or smashed his head against a wall. That is a deadly weapon," said West. He asked jurors to keep an open mind as he concluded his opening statement.
2:22 p.m. ET: Zimmerman had a gun but many people didn't know about it, according to West.
"He didn’t brag about it, didn’t tell people, didn’t show it," said West.
West says Zimmerman got his permit in 2009 and there's no evidence he was trigger happy.
2:21 p.m. ET: West says Zimmerman has gained a lot of weight since the incident. At the time, Zimmerman was fitter and had been working out, according to West.
2:18 p.m. ET: West says Martin was a former linebacker and "knew how to give a hit and take a hit." He also says Martin "knew how to mount someone so as to incapacitate him."
2:16 p.m. ET: The prosecution objects and the judge sustains, telling West to refrain from commenting on evidence. She tells him opening statements are just for attorneys to tell jurors what they think the evidence will show.
2:14 p.m. ET: Zimmerman's neighbor said it was Zimmerman screaming on the 911 call, according to West.
2:12 p.m. ET: West says Martin's dad then said it was his son screaming on the 911 call and that Martin's mom agreed.
2:10 p.m. ET: Martin's dad lowered his head and said it wasn't his son screaming when detectives first asked him, says West.
"And then, of course, more stuff started to happen in town," said West. He talks about the community reaction starting to build and a lawsuit that was filed to release the 911 call.
"There was great, great public pressure on the city to release these recordings," said West.
2:06 p.m. ET: Zimmerman's uncle knew "immediately, without question in his mind" that it was Zimmerman, says West. Other friends and family agree. But he says that other witnesses will say it was Martin's voice, like his mom. "She certainly wants it to be his voice," said West.
2:04 p.m. ET: Scientifically, you can't figure out someone's age when they're screaming, says West. You're left with people who know the voices to determine who it is.
2:02 p.m. ET: West is discussing the 911 call, saying that common sense tells you that the person crying for "help" is the one on the bottom.
"Can science telling us who is yelling for help? And the short answer is, 'No,'" said West. "It’s either a waste of time or the results are unreliable."
1:58 p.m. ET:
1:55 p.m. ET: West shows jurors a photo of Martin's pants and tells them to pay close attention to the stains on the knees. He says this shows that Martin was on his knees, straddling Zimmerman.
1:52 p.m. ET: West says Martin's clothing wasn't packaged properly -- it was wet and put in a plastic bag instead of a paper bag so that it could dry out. He also says the gun shot proves they were less than an arm's length away.
"They were face-to-face, basically on top of each other," said West.
1:48 pm. ET: If Martin grabbed his chest after being shot, then he should have had his own blood on his hands, says West. He again points out that Martin's hands weren't bagged on the scene.
1:46 p.m. ET: West says Martin's hands were never bagged at the scene and the medical examiner never photographed his palms, which could explain why they never found Zimmerman's blood on him.
1:44 p.m. ET: West shows jurors how Zimmerman pulled out the gun and shot Martin.
1:40 p.m. ET: Martin was leaning over Zimmerman, punching him, according to West. This, he says, explains the forensic evidence. The soft drink in the pouch of Martin's hoodie was also causing the hoodie to pull away from Martin's body, says West.
1:39 p.m. ET: West says the hole in Martin’s sweatshirt was a contact shot because the fabric was shredded. He says the hole in Martin’s undershirt was also somewhat shredded. He says the wound in Martin's skin was very round and had a 2x2 area of stippling.
"The clothing Travyon Martin was wearing was separate from his skin by at least a certain amount," said West.
1:35 p.m. ET: West starts back up by apologizing to jurors for the knock knock joke he told earlier.
"No more bad jokes, I promise that. I was convinced it was the delivery," he said.
1:31 p.m. ET: The judge is back on the bench and the jury is being seated