Mexican police discover mass grave amid search for missing students

REUTERS/Jorge Dan Lopez (MEXICO - Tags: CIVIL UNREST EDUCATION CRIME LAW) - RTR48VJA' height='259' alt='Mexico mass grave drug cartel' width='460' src='http://news.guugll.com/wp-content/uploads/2014/10/mexican-police-discover-mass-grave-amid-search-for-missing-students.jpg' />

Authorities have found a mass grave in the restive southern Mexican state of Guerrero at a time when police are scouring the area for nearly four dozen people missing after a rash of violence.