It was March 20, 2005, around 2:00 a.m. in Fraccionamiento del Parque, Mérida, Yucatán, when José Alonso Herrera began recording his friends juggling a soccer ball. He filmed the video with a Sony Ericsson K500i cellphone. When the ball went toward a light pole, David Espada walked over to retrieve it. As he approached the pole, a figure appeared from behind it and extended an arm toward him. Espada pulled away and ran back toward Herrera. Espada later said the figure had grabbed his right ar...