George Zimmerman's first attempt to auction off the 9mm pistol he used to kill Trayvon Martin in 2012 sparked heated debate and was over before it ever began.
So he tried again. And controversy continued.
Now for a second time in about 24 hours, his posting to auction the Kel-Tec PF-9 pistol used to kill Martin was taken down.
Zimmerman, a former Sanford Neighborhood Watch volunteer, told Orlando Sentinel news partner WOFL-Channel 35 that he just got the gun back from the U.S. Department of Justice.
"They took it after my trial, after I was exonerated," he said.
Zimmerman was acquitted in 2013 of killing Martin, an unarmed black 17-year-old. He said he was defending himself when he shot the teen during a struggle.
GunBroker.com, the first site he tried, disavowed the auction, saying it wants "no part in the listing on our web site or in any of the publicity it is receiving."
Zimmerman then posted the firearm to United Gun Group with a starting bid of $5,000. The posting crashed the organization's site most of Thursday.
The site posted a statement to Twitter that they were terminating Zimmerman's posting because they did not feel it was in "the best interest of the organization to continue to host this sale on our platform."
The statement also said their organization stands by 2nd Amendment rights and providing a "safe and secure platform for firearm enthusiasts and law-abiding citizens" but said their association with Zimmerman would not help "achieve that objective."
Earlier Thursday, United Gun Group said that as "long as Mr. Zimmerman (or any other UGG member) is obeying the letter of the law, his personal firearm sale will be permitted on our network."
In both auction posts, signed "Your friend, George M. Zimmerman," he said the gun "currently has the case number written on it in silver permanent marker."
He also said the "purchaser is guaranteed validity and authenticity of the firearm."
The auction listing said the Smithsonian was interested in buying the gun to display in one of its museums because the gun is a piece of American history. Officials with the institute said that isn't true.
"We have never expressed interest in collecting George Zimmerman's firearm, and have no plans to ever collect or display it in any museums," the Smithsonian said on Twitter.
In the listing, Zimmerman says a portion of the proceeds would go toward fighting alleged violence against law enforcement by the Black Lives Matter movement and to stop anti-firearm rhetoric made by Democratic presidential candidate Hillary Clinton.
The proceeds will also help pay for efforts to end the career of Angela Corey, who led the prosecution against Zimmerman, according to the post.
Clinton indirectly responded with a tweet saying she's thinking of Martin's mother, followed by a link to the Trayvon Martin Foundation.
"Sybrina, you and all mothers of gun violence victims have taught us hate will never win," the tweet reads.
Martin's family released a statement saying the foundation is focused on ending "senseless gun violence."
"We are laser focused on furthering that mission. As such, the foundation has no comment on the actions of that person that murdered Trayvon," the statement reads.