"Each of victims had been shot multiple times, Bernalillo County sheriff's Lt. Sid Covington, and one of the weapons used was what he described as an assault rifle. Bernalillo County Sheriff Dan Houston said a 15-year-old boy, who "may be a family member," has been charged with two counts of murder and three counts of child abuse resulting in death".
http://www.cnn.com/2013/01/20/justice/new-mexico-shooting/index.html?eref=rss_mostpopular
http://www.cnn.com/2013/01/20/justice/new-mexico-shooting/index.html?eref=rss_mostpopular