From the 2012 presidential election to the horrendous school shooting in Newtown, Conn., here is a look back at some of the biggest news stories of 2012.
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Seminole County Sheriff's Office/Courtesy GlobalGrind.com
February 26: Trayvon Martin was shot and killed during a violent encounter with security guard George Zimmerman. Zimmerman had visible injuries and claimed he was acting in self-defense when he shot Martin. On April 11, Zimmerman was charged with second degree murder.