Gun Zimmerman used to kill Martin pulled from auction site

By Brendan O'Brien and Colleen Jenkins (Reuters) - The Florida man who shot and killed black teenager Trayvon Martin, triggering nationwide civil rights protests, had offered the gun for sale in an online auction Thursday, but the listing vanished from the site moments after bidding was due to begin. The one-day auction of George Zimmerman's pistol had been scheduled to start at 11 a.m. EST, with a minimum price of $5,000. In the listing, Zimmerman had described the Kel Tec 9mm pistol as "a piec