Axis, due to the ridge of spots along the lower abdomen.  If this is near your place south of Junction I've hunted there for almost 10 years and have seen boatloads of Axis, but never a fallow.  I admit though that the front, neck, and ears of that deer are a little strange for an Axis.  Never seen one, but could it be a cross of some sort?

to me it looks like a axis from shoulders back and also the horn bases.  from the shoulder forward it looks like a whitetail.  usually axis have bigger throat patch than a whitetail and I am not seeing much of anything there.  in the picture there is also a big color difference in the body vs. the neck and head.  fallow that i have seen also have alot of white in the neck area.  its funny how there are no spots going up the neck they just stop at the shoulder.  from my experience, and i am by no means any kind of expert, they have some spot going up the neck just not as many as their bodies have. 

could be a cross breed of some sort!

I shot a couple Axis last year and they are as you state, having spots all the way up the neck, and they also didn't have that black stripe up their back either.  It could always be something genetic, but I've never seen anything quite like this deer before.

It could always be a "Whaxis" deer, but except for does sometimes around a feeder, whitetails and axis like to keep their distance from one another.  And usually its the whitetail that scurries away.

It is positively not an Axis. It could be a fallow but looks a bit dark

Looks alot more like  a Dybowski Sika to me.

Good catch Ron...after looking on the web you're probably right.  Frankly, I never knew there was such a thing as a Dybowski's Sika in Texas.  Here's a few pics of a Dybowski's Sika I found.

I don't know much about exotics, but it is definantly NOT a spotted fawn. I have hunted all of my 57yrs, and have never seen a spotted fawn with antlers starting to "bud out" at that size. Very small spikes maybe, but nothing more.

We have similar animals-south of Rocksprings-I will submit a photo

I hunt between kerrville and Junction, and Ive seen these. I wasnt sure what it was, but i also have axis out there, and they look nothing alike.

That is definantly a Sika.We have many on our ranch.