Then I'm going with a tweener....lol
I was about 85% certain on long yearling, because the permanent pre-molars appear very freshly erupted, and also appear not to be fully in line with the molars.....although they do appear firmly in place. There is only a small hint of wear on them, almost not discernible.
The molars also are very fresh with little wear. However on a long yearling I would suspect the back molar not to be so erupted.
I would wager he was late born, especially being killed in NOV, which is midseason. Looks like a very healthy buck. Unusual jawbone for such a buck.
Of course there are always statistical outliers and that may just be the case with this buck.