A jury of six women heard testimony for a second week in the Florida courtroom where George Zimmerman stands trial for the murder of 17-year-old Trayvon Martin.
Zimmerman, then 28, shot Martin in the chest during a confrontation in the Retreat at Twin Lakes gated community in Sanford, Florida, on the night of February 26, 2012.
Zimmerman is charged with second-degree murder in the case, but his attorneys have maintained that he acted in self-defense.
Police interviews reveal Zimmerman's side of the story
The lead investigator who conducted three interviews with Zimmerman, including a videotaped walk-through of the shooting scene, provided details as to what Zimmerman claims happened the night of the shooting.
About five hours after the incident, Zimmerman sat down with lead investigator Christopher Serino, and later that day, took detectives to the crime scene to explain how the events unfolded. Jurors watched the videotaped explanation Monday.
Zimmerman, covered in bandages, pointed out to police where he first spotted Martin, described how they watched each other, and then explained how the teen allegedly circled back and disappeared before allegedly surfacing again to confront the neighborhood watch captain.
According to Zimmerman, Martin approached him, and after they exchanged words, Martin punched him in the nose. After falling to the ground from the blow to the face, Zimmerman said that's when Martin got on top of him and allegedly began slamming his head against the sidewalk. During the altercation, Zimmerman said Martin noticed he was armed with a gun.
"He reached for it. I felt his arm going down my side, and I grabbed it. I grabbed my firearm, and I shot him one time," Zimmerman told police.
Serino testified that there were no significant differences between Zimmerman's initial interviews with authorities and the videotaped re-enactment. Serino added that he believed the neighborhood watch captain was telling the truth when he told police he shot the teen in self-defense.
Defense attorney Mark O'Mara questioned Serino about Zimmerman's fourth interview with police, when Serino teamed up with Officer Doris Singleton for a more aggressive line of questioning.
Serino stated that, during that interview, he suggested to Zimmerman there were surveillance cameras in the area of the shooting that could have captured the attack.
Zimmerman responded, "Thank God, I was hoping somebody videotaped it."
Singleton, also present during the interview, testified that she did not find any significant differences between Zimmerman's oral and written statements, and found no evidence Zimmerman had any ill will, spite or hatred toward Martin. Singleton added that Zimmerman appeared to be in shock when he learned that Martin was dead.
Hirotaka Nakasone, a senior scientist from the FBI voice analysis lab, testified the screams for help heard on the 911 call were too short and the quality was too poor for scientific analysis.
Medical examiner: Zimmerman's injuries not life-threatening
Tuesday, prosecutors presented two more accounts that Zimmerman gave about the shooting, one to his best friend and another to Fox News host Sean Hannity, in an effort to highlight inconsistencies that prosecutors say prove he murdered Martin that night.
Zimmerman's self-described best friend Mark Osterman answered questions from Prosecutor Bernie de la Rionda about details he wrote in a book with his wife titled, "Defending our Friend: the Most Hated Man in America."
Osterman said that he spoke with Zimmerman right after the shooting, and testified he believed Zimmerman told him Martin grabbed for Zimmerman's gun during the altercation.
However, in his interview with police, Zimmerman said he felt Martin reach for the gun, not grab it.
Osterman also testified that Zimmerman was not himself, and appeared wide-eyed and detached after the shooting.
Prosecutors also played Zimmerman's first TV interview after the shooting in an attempt to reveal another inconsistency in his story. During his interview with Sean Hannity, Zimmerman stated he did not know anything about Florida's "Stand Your Ground" law, when in fact, Zimmerman attended a criminal law class in which the subject of Florida's self-defense laws, including "Stand Your Ground," was covered.
Valerie Rao, a medical examiner who assessed Zimmerman's injuries by examining the 36 photographs taken of him on the night of the shooting, was called to the stand Tuesday. Dr. Rao testified Zimmerman's injuries were not life-threatening and the two cuts on his head were so superficial they required no more than a bandage.
Dr. Rao also testified that she would expect to see more serious injuries to Zimmerman's head if his head had been struck against concrete multiple times like he claimed.
While Dr. Rao testified on direct-examination that she believed Zimmerman's head injuries were consistent with a single impact, she admitted on cross-examination that he could have been struck more than once.