Excerpt:

He stood on the roof of the building, waiting. The instrument was already in position, as was the team he was to contact when the job was done. The waiting was always the hardest part of the contract, he mused, the part when the majority of mistakes occurred. This job, for example; all it would take would be a moment’s inattention—a blink, or a sneeze at the wrong time, and they would blow this chance, and have to wait for years for the window to appear again.
Shaking his head, he turned his focus once again to the target structure. It was a non-descript structure, really, for the part of town that it was in. In a way, that was what made it stand out so much more; even more so than it did to him because of what it was.
He tensed as the door opened; but no, it was a false alarm. Close, though, very close. There was just a tiny bit off with the hair, dark instead of light. The target seemed to be changing his schedule on them; that wouldn’t due. This had to be accomplished tonight or else they couldn’t begin phase 2 of the plan, the phase that had taken the most effort to set up, and had the most possibility of going wrong. The door opened again; yes, this time it was the target. Smiling, he set himself up behind the instrument to wait for the precise moment. His finger poised on the trigger as he looked through the scope.

Mr. Ian Woon never heard a thing. The bullet hit his chest at 1500 meters/second, killing him instantly. He never saw the men emerge from the shadows to collect his body before it hit the ground. He never knew that had he followed his gut and not taken a walk tonight, the chain of events that had just been set in motion would have never begun.