cameras were rolling when mexican drug kingpin joakim el chapo guzman escaped from prison.e surveillance footage footage. you can see him pacing back and forth before stepping into the bathroom stall. a few seconds later, he vanished. >> think he was having second thoughts thinking of doing his time? >> what was he thinking. he vanishes down to the tunnel below. >> now there's information suggesting u.s. drug agents warning mexican authorities about a possible prison break in the words. let's go to polo sandoval live from mexico. polo the latest? >> hey, chris, good morning. the brand-new images by the government are going to be critical to the investigation and, perhaps once of the most significant developments in the case since the break over the weekend. the footage shows the latest image of joakim el chapo guzman and the moment he slid out of view of the security cameras and into the tunnel below. this surveillance video shows the second brazen prison break of guzman. watch as he's still in prison uniform, walks over to the shower in his cell bends over and vanishes int