MIAMI — An online gun auction website yanked George Zimmerman’s ad Thursday to sell the pistol he used to kill unarmed black teenager Trayvon Martin, saying it wanted no part in the deal, but a second site offered to post it.
A listing for the weapon was removed from GunBroker.com, minutes after the auction was to begin, as negative traffic about the sale exploded online. In a statement posted on its website, GunBroker.com said listings are user generated, and that the company reserved the right to reject listings at its discretion.
Zimmerman never contacted anyone at the site and no one there ‘‘has any relationship with Zimmerman,’’ the company wrote in its statement.
Hours later, United Gun Group tweeted that it would post Zimmerman’s ad. The new link was posted, along with a statement from Zimmerman. However, the site apparently went down a few minutes later.
Critics called the planned auction an insensitive move to profit from the slaying.
Zimmerman had told an Orlando, Fla., TV station that the pistol was returned to him by the Justice Department, which took it after he was acquitted in Martin’s 2012 shooting death.
Zimmerman’s listing for the original auction said a portion of the proceeds would go toward fighting what Zimmerman calls violence by the Black Lives Matter movement against law enforcement officers, combating antigun rhetoric of Democratic presidential candidate Hillary Clinton, and ending the career of state attorney Angela Corey, who led Zimmerman’s prosecution.
The listing ended with a Latin phrase that translates as ‘‘if you want peace, prepare for war.’’
Zimmerman, now 32, has said he was defending himself when he killed Martin, 17, in a gated community near Orlando. Martin, who lived in Miami with his mother, was visiting his father at the time.
Zimmerman, who identifies as Hispanic, was acquitted in Martin’s February 2012 shooting death. The case sparked protests and a national debate about race relations. The Justice Department later decided not to prosecute Zimmerman on civil rights charges.
Since Zimmerman was acquitted, he has been charged with assault based on complaints from two girlfriends. Both women later refused to press charges and Zimmerman wasn’t prosecuted.
Martin’s parents declined to address Zimmerman’s actions in statements made through representatives.

