OP, I see your from Texas..here ya go

Texas passed a Castle Doctrine law, removing the duty to retreat in one's home, in 1995. ... Under the law, a person's use of deadly force will be presumed reasonable if someone enters, or attempts to enter, that person's occupied home, vehicle or workplace "unlawfully and with force."

More reading

https://www.uslawshield.com/caught-i...ahead-of-time/