““Whatever the reason, Díaz knew it could wait. At the moment, he had only one task. Apprehend the shooter. As Díaz arrived at the site of the telltale flash, he found a slit in the fabric wall and plunged his hand through the opening, violently tearing the hole all the way down to the floor and clambering out of the dome into a maze of scaffolding. To his left, the agent caught a glimpse of a figure—a tall man dressed in a white military uniform—sprinting toward the emergency exit at the far side of the enormous space. An instant later, the fleeing figure crashed through the door and disappeared. Díaz gave pursuit, weaving through the electronics outside the dome and finally bursting through the door into a cement stairwell. He peered over the railing and saw the fugitive two floors below, spiraling downward””
