Man wearing a devil's mask poses for a picture at a crime scene in Monterrey
A man wearing a devil's mask poses for a picture at a crime scene in Monterrey January 20, 2014. Unknown assailants gunned down a man in a drive-by shooting at a working class neighbourhood, local media reported. REUTERS/Daniel Becerril (MEXICO - Tags: CIVIL UNREST CRIME LAW TPX IMAGES OF THE DAY)