Worst mass shootings in recent history

<div class="meta image-caption"><div class="origin-logo origin-image "><span></span></div><span class="caption-text">A woman comforts a young girl during a vigil service for victims of the Sandy Hook Elementary shooting, Friday, Dec. 14, 2012, at St. Rose of Lima Roman Catholic Church in Newtown, Conn. &#40;AP Photo&#47;Andrew Gombert, Pool&#41; (AP Photo&#47; Andrew Gombert)</span></div>
December 14, 2012 6:26:38 PM PST