at the u.s. embassy. >> i had this feeling, this empty feeling. i was completely hollow. you know, and i expected to be doing cartwheels up and down the hall, ecstatic. but i wasn't. >> drew could not understand why he was suddenly depressed. >> i felt almost like i was placed at dea to do this. and then, once it was done, that was it. it's time for me to go. >> eight months later, special agent drew hogan walked away from the dea and left mexico with his family. he got a job in the private sector. and that was supposed to be the end of the story. then, seventeen months after el chapo's capture. >> i was in the backseat of a taxicab, in rome, on my way to the airport, headed to new york