dangerous drug lord, el chapo. martin savidge is on the ground as authorities look for the illusive billionaire. martin savage spent the day on dangerous assignment as the hunt closes in on what may be an injured and desperate el chapo. according to a source, the drug lord fell off a cliff and broke his leg running from police. he's been able to evade capture every since escaping using this underground tunnel. martin savidge is with me now "outfront." and what did you see today, what can you tell us? >> reporter: well, i hate to break your heart, but we did not find joaquin guzman. but you do find everywhere you go here evidence of how the incredible search to try to locate him is literally turning lives upside down. and by that i mean lives of local people here. everything from the many check points and road blocks that have been set up by the military, but then on top of that, the military effort, we were just