Newly released evidence in the case against George Zimmerman include forensic tests that show Zimmerman's was the only DNA that could be identified on the grip of the gun used to shoot and kill Trayvon Martin.
That evidence was part of the sixth and seventh sets of supplemental discovery records in the case, both of which were made public Wednesday by the state Attorney's Office.
The forensic test results rule out Trayvon Martin's DNA from being on the grip of the gun that killed him on the night of February 26.
Zimmerman's DNA was also identified on the gun's holster, but no determination could be made as to whether Martin's DNA was on the holster as well, according to the Florida Department of Law Enforcement.
Zimmerman, who has been charged with second-degree murder for Martin's death, has pleaded not guilty, claiming self-defense. He is free on bond, but his exact whereabouts in Seminole County remain unknown.
The question of whose DNA is on the gun and holster could play a role in Zimmerman's defense. Zimmerman said Martin had been on top of him, slamming his head against the ground and smothering his mouth and nose with his hand and arm. He said Martin reached for Zimmerman's gun, but Zimmerman grabbed his gun from a holster on his waist before Martin could get it. He shot the teenager once in the chest.
Other documents released by prosecutors Wednesday include an audio recording of an interview with the clerk of a nearby 7-Eleven where Martin purchased Skittles and a can of iced tea moments before his confrontation with Zimmerman.
In the interview, conducted more than a month after the shooting, the clerk said he didn't remember Martin, and there was nothing about the teen that made him stand out in his mind.
"To be honest, I don't even remember that day," said the clerk, whose name was redacted.
Trayvon Martin's blood was identified on the bag of Skittles he was carrying.
There was also a sample taken from Martin's fingernails. According to the documents, there were no traces of anyone else's DNA found. Prosecutors could use that to argue that there was no fight or struggle, as Zimmerman described.
Sanford chief received more than 40,000 emails within 3 days
Wednesday's release also included tens of thousands of emails to Sanford police Chief Bill Lee, who was later fired after a delay in Zimmerman's arrest led to weeks of protests in the city.
Of the nearly 50,000 emails included in the release, more than 42,000 of them were copies of a petition started on the website Change.org, sent within a three-day period from March 13–16.
The emails sent via Change.org read as follows:
I'm writing you today to call for justice for Trayvon Martin and his family.
Trayvon Martin was only 17 years old when he was gunned down by the Neighborhood Watch captain George Zimmerman. All Trayvon did was go to the store to get his brother some Skittles.
According to police, George Zimmerman admitted to the shooting and killing of Trayvon Martin. Why has he not been charged and his case been handed over to prosecutors?
Trayvon Martin was unarmed when he was shot by Zimmerman. All he had in his hands was some candy when he was followed and approached by Zimmerman - who ignored instructions from police not to confront the young man.
Please uphold justice."
Each email was signed by a different petitioner from locations across the country and around the world.
Thousands more emails came from personal email accounts, including many calling for Lee to resign, many showing support, and a few threatening the police chief.
The earliest email mentioning the name Trayvon Martin, dated Feb. 29 -- just three days after the shooting -- was a request to meet with Lee by the president of the Seminole County NAACP.
Information from The Associated Press was used in this report.