space so i could probably make a getaway. >> a risky move. the pistol wielding motorcyclist is growing more agitated. with the bicycle now between them, hennessy makes another dangerous play. >> so i started running and the pack back that i had on me was about 30 pounds. so it was hard for me to run at any speed. he caught me pretty quickly. he had me against the fence and he actually had the gun in my gut and at my leg. that's when i started really thinking he was going to shoot me. >> off camera, mike sees his friend cornered and runs to his aid. >> and i just wanted to remove alex from the situation. so i grabbed the back of his backpack and kind of pulled him backwards and had my hands in the air saying amigo, no amigo. no, no, no. >> i managed to buy enough time before mike got to me and before the tour guide got to me. he hadn't shot yet and now he was in a situation where he would have to shoot three people. >> hennessy runs again.