Alright, I've got a friend who was attacked on his front porch by three guys yesterday, it was a normal high school feud, so nothing to crazy, but it got me thinking. I know that Texas is extremely lenient when it comes to protecting your property and persons on said property, and I know he could've used deadly force the minute they threw the first punch because 3-1 could easily be life threatening, but what exactly does the law state about deadly force against trespassers?