Map: School shootings

POSTED: 01:07 PM PDT May 11, 2011    UPDATED: 08:31 AM PST 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.