Michael Schoch, Answers questions on Noodle
I couldn't find any listings for a law professor named D. Abel at either the University of North Texas main campus, or at the UNT Dallas College of Law. I did a quick Google search as well, but wasn't able to find a law professor in Texas by that name.
You can double check for yourself by calling UNT at (940) 565-2000, or by calling the UNT law school at 214.752.5959.
If you have other questions or more specific information to provide, feel free to ask a follow up question. Generally speaking, if you're curious about the faculty at a school or college, your best bet is to call that institution directly. Good luck in your search!