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Map: School shootings

POSTED: 04:07 PM EDT May 11, 2011    UPDATED: 11:31 AM EST Dec 12, 2014 

More than 20 people, most of whom are children, were shot and killed at a Newtown, CT, elementary school on Dec. 14, 2012. School shootings have happened in many places throughout the United States. Here is a map showing details on some of these shootings.