Liberty wrote:
I don't understand the legal justification for him shooting the BG. I wouldn't have taken the shot.   The bad guy was leaving and doesn't sound like  a threat at this point.
Texas law allows you to use deadly force to prevent the perp from fleeing, not that that is what happened, I imagine the perp was threatening deadly force as he was fleeing....
§ 9.42. DEADLY FORCE TO PROTECT PROPERTY. 
A person is justified in using deadly force against another to protect land or tangible, movable property:
(1)  if he would be justified in using force against the other under Section 9.41;  and
(2)  when and to the degree he reasonably believes the deadly force is immediately necessary:
(A)  to prevent the other's imminent commission of  arson, burglary, robbery, aggravated robbery, theft during the nighttime, or criminal mischief during the nighttime;  
[blue] or
(B)  
to prevent the other who is fleeing immediately after committing burglary, robbery, aggravated robbery, or theft during the nighttime from escaping with the property;  and
(3)  he reasonably believes that:                                         
(A)  the land or property cannot be protected or recovered by any other means;  or
(B)  the use of force other than deadly force to protect or recover the land or property would expose the actor or another to a substantial risk of death or serious bodily injury.[/quote]