A photo of Trayvon Martin's body from the night George Zimmerman said he shot and killed the teen in self-defense last year was shown to the jury in Zimmerman's second-degree murder trial Tuesday during testimony from the Sanford Police officer who responded to the scene.

A crime scene technician also identified various items found at the scene, including the now-familiar bag of Skittles and can of Arizona watermelon-flavored drink the 17-year-old was carrying.

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Follow LIVE UPDATES from the courtroom today.

Witnesses called Tuesday by the state include:

  • Selene Bahadoor, a neighbor who said she saw part of the struggle.
  • Diana Smith, a crime scene technician who investigated to the scene.
  • Anthony Raimondo, a Sanford police sergeant who was the second officer to arrive at the scene.
  • Donald O'Brien, president of the Retreat at Twin Lakes homeowners' association.
  • Wendy Dorival, a former coordinator of the Sanford Police Department's neighborhood watch program who helped Zimmerman set up the program in his neighborhood.
  • Ramona Rumph: The sheriff's comminications deputy director who began her testimony Monday.

Tuesday's testimony

Witnesses listed in reverse order, with the most recent witness on top.

Selene Bahadoor lived near the scene last year, and witness a scuffle and shooting outside her home.

Bahadoor, the first witness to say she saw part of the struggle, recalled looking out a window she saw arms flailing in the dark. She said she left to turn off a stove and then heard a gunshot. The next time she looked out, she saw a body on the ground, she testified.

She described the sound of movement from left to right outside her townhouse, and said she heard what sounded like someone saying, "No" or "Uh."

In cross-examining her, defense attorney Mark O'Mara accused Bahadoor of never mentioning the left-to-right movement in previous interviews.

O'Mara also pointed out a post on Bahadoor's Facebook wall that she signed the 2012 petition on Change.org calling for Zimmerman's arrest.

Diana Smith was the crime scene technician who investigated the shooting scene.

Prosecutor John Guy had Smith point out on a map of the Retreat at Twin Lakes subdivision where she found the body of Trayvon Martin, as well as identify items she found at the scene, including an unopened bag of Skittles and the full can of watermelon-flavored drink, Trayvon Martin's cell phone, George Zimmerman's gun and holster, and Trayvon's shirt and hooded sweatshirt.

Smith said she did not find any blood on the grass, surrounding Martin's body. She told the defense she cannot go through a victim's pockets without consent from the medical examiner's office. Some of the items presented as evidence were items she collected from medical examiner's office.

The defense also had Smith identify photos of Zimmerman, taken the night of the shooting, with cuts and blood on his head and face.

Sgt. Anthony Raimondo was the Sanford police officer who responded to the scene of the shooting.

Raimondo was the second officer to arrive on the scene, and testified that he tried to seal a bullet wound in Martin's chest with a plastic bag and attempted mouth-to-mouth resuscitation.

Bubbling sounds indicated air was escaping the teen's chest, Raimondo said. Martin was pronounced dead a short time later.

During Raimondo's testimony, prosecutors showed jurors a photo of a dead Martin face-down in the grass, another of Martin's body face up with his eyes slightly open, and a third of the bullet wound. Martin's father, Tracy Martin, walked out of the courtroom during the testimony.

Donald O'Brien is president of the Retreat at Twin Lakes homeowners' association.

O'Brien said he met George Zimmerman at the neighborhood watch presentation by Wendy Dorival. He told prosecutor Rich Mantei, "We were told to stay away from suspicious people and call police."

Wendy Dorival is questioned about Zimmerman's neighborhood watch training.

A former coordinator of the Sanford Police Department's neighborhood watch program, Dorival testified how she had worked with Zimmerman to set up a watch in his neighborhood.

When asked by prosecutor John Guy if neighborhood watch participants should follow or engage with suspicious people, she said no.

"They are the eyes and ears of law enforcement," Dorival said. "They're not supposed to take matters into their own hands."

Guy showed Dorival and the jury a handbook and other materials Zimmerman received at a presentation Dorival gave in September 2011 at the Retreat at Twin Lakes subdivision's clubhouse. He pointed out one page in particular that said in large, bold letters: "Neighborhood watch is not the vigilante police."

Dorival told the defense that before the Martin shooting, she had asked Zimmerman to become a "citizens on patrol" volunteer, but he declined the offer. She also said neighborhood watch volunteers are not taught that they cannot defend themselves if they're attacked.

Defense attorney Don West asked Dorival if someone walking in the rain who didn't seem to have a purpose -- like Zimmerman said Trayvon Martin was doing -- would be considered suspicious. Dorival said she would advise someone to call the non-emergency dispatch number, because that person is not posing a threat.

Ramona Rumph testifies about 911 calls reporting Trayvon Martin shooting.

The jury returned to the courtroom around 10 a.m. Tuesday to find Rumph back on the stand to continue her testimony.

As the state asked Rumph about 911 calls made by witnesses of the shooting, defense attorney asked to approach for a sidebar. Rumph was asked no further questions.

Defense: Zimmerman's past 911 calls irrelevant

As a neighborhood watch volunteer, George Zimmerman called police close to 50 times over an eight-year-period to report such things as slow vehicles, loitering strangers in the neighborhood and open garages.

Prosecutors want to introduce recordings of some of those calls during Zimmerman's second-degree murder trial for the fatal shooting of 17-year-old Trayvon Martin, saying they are indicative of his overzealousness in pursuing people he considered to be suspicious -- and of his state of mind on the night the unarmed teen was killed.

Defense attorneys object to the introduction of the calls, saying they should not be admissible under the rules of evidence. Defense attorney Mark O'Mara cited Rule 404 in the Federal Rules of Evidence, titled "Character Evidence; Crimes or Other Acts."

The calls made in the six months before Zimmerman fatally shot Martin on Feb. 26, 2012, reflect the neighborhood watch volunteer's growing frustration with repeated break-ins at his gated community of townhomes and plays into the prosecution's theory that his view of Martin as a suspicious character was "the straw that broke the camel's back," prosecutor Rich Mantei said.

Defense attorney Mark O'Mara argued that no previous incidents matter except the seven or eight minutes prior to when Zimmerman fired the deadly shot into Martin's chest.

"They're going to ask the jury to make a leap from a good, responsible, citizen behavior to seething behavior," O'Mara said of the prosecution's depiction of Zimmerman's actions.

Judge Debra Nelson said she would make a ruling after reviewing prior cases. The lawyers presented their arguments with the jury out of the courtroom.

In the calls, Zimmerman identifies himself as a neighborhood watch volunteer and recounts that his neighborhood has had a rash of recent break-ins. In one call, he asks that officers respond quickly since the suspects "typically get away quickly."

In another, he describes suspicious black men hanging around a garage and mentions his neighborhood had a recent garage break-in.

Zimmerman, 29, could get life in prison if convicted of second-degree murder for gunning down Martin as the young man walked from a convenience store. Zimmerman followed him in his truck and called a police dispatch number before he and the teen got into a fight.

Zimmerman has claimed self-defense, saying he opened fire after the teenager jumped him and began slamming his head against the concrete sidewalk.

Zimmerman, whose father is white and whose mother is Hispanic, has denied the confrontation with the black teenager had anything to do with race, as Martin's family and its supporters have charged.