George Zimmerman said this week he intended to auction the gun he used to kill Florida teenager Trayvon Martin in 2012. It is not unheard of for evidence in high-profile cases to be sold at auction or otherwise appear in public. Here is a look at what has happened to pieces of evidence in other well-publicized deaths.Sanford Police Dept.
This is the Volkswagen Beetle police say serial killer Ted Bundy used with some of his victims in the 1970s. Bundy, who confessed to killing more than 30 women and girls, was executed in Florida in 1989 after being convicted of killing three people there. The vehicle was in Washington at the National Museum of Crime and Punishment before the museum closed last year.STEVE C. WILSON/AP
During the sniper-style shootings that took place in the Washington area in 2002, this tarot card was left for police outside a middle school in Maryland's Prince George's County. By the time John Allen Muhammad and Lee Boyd Malvo were arrested, 10 people were killed and three others were injured. Muhammed was executed and Malvo was sentenced to life in prison. The card is on display at the Newseum in Washington, on loan from the National Law Enforcement Museum.Amy Joseph/Newseum
Jack Ruby shocked the world when he shot and killed Lee Harvey Oswald shortly after Oswald was accused of assassinating President John F. Kennedy in 1963. The gun used to kill Oswald, a Colt Cobra, was sold at auction in 1991 by Ruby's brother. It was bought for a reported $220,000 by Florida businessman Anthony Pugliese III. Pugliese himself put it up for auction in 2008, but he kept it after no bid met his reserve price, the Guernsey's auction house said.David Woo/Corbis Historical/Getty Images
Blood-stained gloves were among the evidence in the 1995 murder trial of O.J. Simpson. After the monthslong trial -- in which the defendant famously tried on the gloves -- he was acquitted in the deaths of his ex-wife Nicole Brown Simpson and Ronald Goldman. Police say the case still is open, and the gloves and other evidence reportedly still are in authorities' possession.VINCE BUCCI/AFP/Getty Images
Bonnie Parker and Clyde Barrow, the notorious couple who murdered and robbed their way to infamy in the 1930s, were gunned down by police in Louisiana in 1934. A Colt .38 snub-nosed revolver was found taped to Parker's inner thigh, and a Colt .45 was found on Barrow's waistband. In 2012, Parker's weapon was sold at auction for $264,000, and the other sold for $240,000.Courtesy RR Auction
The Newseum in Washington holds a 10-by-12-foot cabin that "Unabomber" Ted Kaczynski lived in for years.RICH PEDRONCELLI/ASSOCIATED PRESS