Mexican police have been on a massive manhunt this week for a former drug kingpin and billionaire, who escaped from a maximum-security prison.br br Joaquin Guzman escaped through a 1.5-kilometre tunnel starting in his cell - here's the exclusive footage RT filmed therebr br RT LIVE br Subscribe to RT! br Like us on Facebook Follow us on Twitter Follow us on Instagram Follow us on Google+ Listen to us on Soundcloud: br RT (Russia Today) is a global news network broadcasting from Moscow and Washington studios. RT is the first news channel to break the 1 billion YouTube views benchmark.