It is very obvious that, given that you accept the Texan law, the verdict was correct:
"§ 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; 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."
