A great thing to remember is that it's nearly impossible for most hunters to pattern and kill one particular buck. Some guys may tell you they can do it, but I'll put money down that they don't do it regularly.
If you do that, 9x out of 10x that buck will become, in your mind, unkillable and you probably won't enjoy your sport as much. The thing to learn to do is to manage the deer that are in your zone of shooting comfort and select your animal when that event, with more than one animal at a time, occurs.