But stopping a crime in progress is not vigilantism, not in Texas at any rate. It's also not vigilantism to shoot at someone who is advancing on you after being told to stop. Especially when that someone has just committed a felony, which you know, and is now on your property.
This is a vigilant neighborhood watch program. How many hundreds of burglaries did this man stop by carrying out this lawful action. The police essentially write tickets and clean up after home invaders have wrought havoc on the unsuspecting. Mr.Horn acted within the writ of the codified law of the Texas Code. The shame is the these two lawless illegal aliens chose to make commerce on the backs of hard working lawabiding citizens. The reaped a whirlwind. It is the result of their doing, not Mr.Horn.