Serino says the medical examiner's report supports Zimmerman's story of how and where he shot Martin. It also supports Zimmerman's claim that Martin was on top of Zimmerman when he shot him. Serino says the evidence contradicts the idea that Zimmerman pressed his gun to Martin's chest.
[Updated at 10:47 a.m. ET]
During the police reenactment, Serino says nobody pointed out to Zimmerman that there was a number on one of the houses. Serino says it didn't seem like "active deception" that Zimmerman said he didn't see an address. The fact that Zimmerman couldn't remember the three streets in his neighborhood did raise red flags for Serino. He believed that could be "active deception."
[Updated at 10:44 a.m. ET]
Serino agrees that Zimmerman may have seen the address on the neighbor's house if he wasn't blocked by a tree and was looking to the right. He also says there was no number on the side of the house, so Zimmerman wouldn't see the address after he walked by the house.
[Updated at 10:41 a.m. ET]
"On the screaming on the 911 call, there wasn't a great deal of muffling, wouldn't you agree?" asked O'Mara.
"No sir, there was not," said Serino. He agrees that the scream came from one person. He also says someone may interpret that they're getting smothered if someone else has a hand on their broken nose.
[Updated at 10:39 a.m. ET]
Zimmerman didn't seem smug, according to Serino.
"He seemed quite interested in the fact that there might be a videotape?" asked O'Mara.
"Yes he did," said Serino.
O'Mara says Zimmerman hoped that the neighborhood put up a new video camera that he didn't know about to document what happened.
[Updated at 10:36 a.m. ET]
Serino says that in Zimmerman's mind, he might have viewed it as a rash of burglaries. Serino would need more numbers before he could make that determination.
[Updated at 10:34 a.m. ET]
O'Mara says that if you consider Zimmerman's story to be true, about his head being hit against concrete, "Do you consider him [Trayvon Martin] to have armed himself with concrete?"
"Yes sir," said Serino.
[Updated at 10:33 a.m. ET]
Serino agrees that he wasn't worried that a crime was happening; just that someone was where he shouldn't be.
O'Mara asks Serino if it was it appropriate for Zimmerman to call the nonemergency number, based upon seeing someone at night, in the rain, between two homes.
"That would be reasonable, to call nonemergency," said Serino.
"If you were driving an unmarked car and saw Trayvon Martin standing there ... would you have stopped and talked to him?" asked O'Mara.
"Not just based on his presence, no I would not," said Serino. "He might live there."
"Would you stop and ask him?" asked O'Mara.