<http://schema.org/alternativeHeadline>
"It is a strange reality of our times that, while we have no idea what may have motivated Dzhokhar Tsarnaev to attack the Boston Marathon, we do know when he sleeps.."^^<http://www.w3.org/2001/XMLSchema#string>
<http://qz.com/76442/we-know-when-dzhokhar-tsarnaev-sleeps/>