"I went to grab my cell phone, but I left it in a different pocket. I looked down at my pants pocket, he said, 'You got a problem now' and then he was here and he punched me in the face," said Zimmerman, throwing a punch near his own face to illustrate.
"I think I stumbled and I fell down, he pushed me down, somehow he got on top of me... I was trying to push him away from me. He got on top of me somewhere around here, and that's when I started screaming for help. I started screaming HELP as loud as I could. I tried to sit up. That's when he grabbed me by the head and he tried to slam my head down," Zimmerman said.
"He kept slamming and slamming, and I kept yelling HELP, HELP, HELP as loud as I could," he said.
In the voice stress test video, which begins with a bandaged Zimmerman commenting to an officer on the high price of health insurance as a reason he was hesitant to get treatment the night of the shooting, he later calmly questioned an officer about what she did on the force.
But in a Feb. 29 interrogation, lead investigator Chris Serino openly doubts the story.
"You ever hear of Murphy's law?" asks Serino. "This person was not doing anything bad. You know the name of the person that died?"
"Tavon," responds Zimmerman
"Trayvon," Serino shot back.
"Trayvon Martin" responds Zimmerman.
"Trayvon Benjamin Martin…He was 17…A kid with a future," said Serino. "In his possession we found a can of ice tea and a bag of Skittles. And $40 in cash. Not the goon."
Serino then peppered Zimmerman about if he had any law enforcement experience, and why he deemed Martin suspicious and decided to follow him.
"You know you are going to come under a lot of scrutiny over this, correct?" asks Serino. "Had this person been white would you have felt the same way?"
"Yes," responded Zimmerman.
Serino then questioned the extent of Zimmerman's injuries telling him that they don't seem consistent with someone involved in a life or death struggle. A medical report obtained earlier by ABC News revealed that Zimmerman suffered a broken nose and two lacerations on the back of his head.
Another investigator then asked why didn't he just identify himself as a member of the local neighborhood watch. Both investigators then ask if it was raining outside, and if he decided not to follow Martin after the non-emergency dispatcher asked him to get back in the car why didn't he.
"You wanted to catch him. You wanted to catch the bad guy," said Serino aggressively later in the interview, implying that it was Zimmerman who instigated the altercation.
Lead investigator Serino later recommended that manslaughter charges be brought up against Zimmerman, but Seminole County State's Attorney Norm Wolfinger rejected the request citing a lack of solid evidence. The initial lack of an arrest in the case led to widespread protests, and propelled the case into the national headlines. In April, special prosecutor Angela Corey appointed by Florida Gov. Rick Scott charged Zimmerman with second degree murder.
The Martin family issued a statement today through their lawyer Benjamin Crump.
"When you look at the hand-written statement written by George Zimmerman on the night of the shooting that he did before he talks to lawyers, his words, and take that into consideration with the audio statements, the witness interviews, and the previously released evidence, it is clear to us why Angela Corey charged George Zimmerman with second degree murder," the family said.