The man's stride was purposeful, his steps quick and confident. He had a determined expression on his face, his gaze fixed straight ahead, his mind focused on the task at hand; get the suitcase filled with a machine that would release a life-threatening chemical, carbon monoxide, onto the plane. His eyes were constantly moving, scanning his surroundings for any signs of trouble, any threats to his plan. All his movements were calm and collected, betraying no indication of nervousness or uncertainty. Clearly, this was a man who had done this before, one who knew exactly what he was doing and was not about to be deterred by anything or anyone.

He suddenly stumbled as a teenaged girl bumped into him, a brief moment of surprise and annoyance crossing his face. He quickly composed himself, patting at his pocket, his mind racing. The key to the luggage was gone. He looked back at the girl, now walking away, slipping her hand into her pocket. Irritation flared within him. She had snatched the key, and was working for someone.

He called out to her, his voice a harsh command. "Hey, stop!" He started to quicken his pace, closing the distance between them, his steps heavy and purposeful. As he got closer, his eyes fixed on the hand in her pocket. Dread and anger were etched on his face, his gaze hard and calculating as he pushed through the crowd of the airport.