A forensic technician works at the Blue Parrot nightclub after a gunman opened fire early on Monday,...
A forensic technician picks up an electronic card of a hotel room at the Blue Parrot nightclub after a gunman opened fire early on Monday, killing several people and injuring others, during a BPM electronic music festival held at the venue, in Playa del Carmen, Mexico, January 17, 2017. REUTERS/Victor Ruiz Garcia