Prey and Predator

It's there, behind me somewhere. Always. 
It gets closer each day, but it is in no hurry. It knows the outcome as well as I. I can outpace it, but only for a time. It knows not fatigue or rest and the only hunger it knows can be only satisfied by the end of our deadly game.
I on the other hand, must on occasion rest, and it gains during these times. I must eat, and it gains then too.
I have learned its behavior over the years, as I am sure it has learned mine. Early on I tried to lose it in the crowds of cities, only to learn that those who cross its path perish, meeting gastly deaths with no hope of survival. Now I avoid places where others dwell.
It moves faster at night, so I have learned to rest during the light of day and travel at night. The shadows give it freedom and strength, just as the light does for me.
I have doubled back on my tracks and gotten behind it, stalking it breifly as it stalks me, but only for a short time as it catches on quickly, more so now that in the first days. I have caught glimpses of it from time to time and its visage haunts me, both from the first time we became aware of each other and the few encounters we have had.
Others seem to have no defence against it. Their death comes quickly and violently. I have fought it and even injured it once or twice, but only at great injury to myself.
But soon this will end. I have been preparing, even on my long march away from its grasp, I have schemed and planned to meet it and finaly end this long game.
I was young once. Now I am older, wiser maybe. Definitly more experienced. I will win out in the end, one way or the other.
The murderer who is me will die, or I will, but either way, the path shall end and the souls we have left as dead in our wake will finally rest.