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MIAMI (CBSMiami) — The gun George Zimmerman used to kill Trayvon Martin is back on the auction block for the third time.

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As of Monday afternoon, the third auction – which ends Tuesday – had no bidders.

Zimmerman pulled the auction from the United Gun Group site on Saturday, following a string of fake offers.

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A new auction was posted the same day with a minimum bid of $100,000 for the Kel-Tech pistol.

The site’s owner – Tom Underwood – said they won’t interfere with the sale.

“I want to be clear. We are not selling the gun. We are allowing another individual to make his own decision on what he wants to do. This has nothing to do with us making a decision. This is – we have a platform. We allow people to use it. And we’re going to continue allowing people to use it for lawful legal activity. We are not going to dictate morality to our individuals,” said Underwood.

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The site’s owners rejected the sale at first and are still trying to distance themselves from Zimmerman.