Did George Zimmerman's Gun Get Removed From Auction?

This morning it became known that George Zimmerman would be auctioning off the 9mm pistol he used to kill 17-year-old Trayvon Martin on the website GunBroker.com. Despicable, we know. The only positive thing about the sale is that Zimmerman convinced the other .01% of the population that he’s a dirtbag, so there’s that.
“I am honored and humbled to announce the sale of an American firearm icon,” Zimmerman wrote on his auction page at GunBroker.com. “The firearm for sale is the firearm that was used to defend my life and end the brutal attack from Trayvon Martin on 2/26/2012.”
The infamous gun was officially put up for sale at 11 AM EST, although less than an hour later it seems as though the gun was taken off the market.
But now Gun Broker has had their listing for the pistol removed. In addition, their website and Facebook pages are no longer active.
We’re betting that Anonymous or some other hacktivist group is behind the move.