Hey guys, my family had just found a three toed a few hours ago, he seems like he has shell rot due to one of the lines in his carapace looks like it could just twist off. I live in north Texas in Frisco, we NEVER have box turtles in sight it appears. He looks like an adault, my question is that is he native here? Or was he abandoned? Should I keep him under my care long term? What would be the best solution? I need help quick please!!