<http://schema.org/url>
<http://www.businessweek.com/articles/2013-09-16/the-navy-yard-shootings-and-the-muddle-of-the-gun-foes>
<http://www.bloomberg.com/bw/articles/2013-09-16/the-navy-yard-shootings-and-the-muddle-of-the-gun-foes>