Why Adam Lanza went on his murderous shooting rampage at a Newtown elementary school is still a mystery and may never be known with certainty, prosecutors said Monday in a report that closed out their... more 
Why Adam Lanza went on his murderous shooting rampage at a Newtown elementary school is still a mystery and may never be known with certainty, prosecutors said Monday in a report that closed out their yearlong investigation. less 
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WRTV - Indianapolis Scripps
Mon, Nov 25, 2013 11:40 PM EST