No. He dealt with what he perceived as an extant threat to himself and his family in a perfectly legal manner (in Texas).
Now, I will admit that with the same set of circumstances out ere in California, the dad would be going to jail for a long time. But that is because California has ridiculous laws concerning any kind of self-defense, let alone using a gun.
Absolutely yes. And this is the sort of stupidity that can cause some of these justifiable self-defense laws to be changed.
1. The boy had been let into the home by the daughter. He was an invited guest.
2. The daughter lied to her father when by saying she did not even know the boy.
3. The father lost his head and ended up murdering the boy his daughter had let into their home, and into her bedroom.
4. And who thinks anyone can believe the story told by the father, that he "thought" the boy was reaching for something. About the weakest possible claim of self-defense. The father had no reason to shoot the boy, and he has no credibility as anyone to be believed, nor does the daughter. The poor judgement, lie and overreaction of the two resulted in the death of an innocent boy. Or maybe you think that every boy who's had sex with someone's daughter deserves to be shot.
This stupid scenario is not one to hold up as proof of the need for various self-defense laws. It's the opposite.