We are good to go in TX:
PC §9.32. DEADLY FORCE IN DEFENSE OF PERSON.
(a) A person is justified in using deadly force against another:
(1) if he would be justified in using force against the other under
(2) if a reasonable person in the actor's situation would not have
(3) when and to the degree he reasonably believes the deadly
force is immediately necessary:
(A) to protect himself against the other's use or attempted use
of unlawful deadly force; or
(B) to prevent the other's imminent commission of aggravated
kidnapping, murder, sexual assault, aggravated sexual assault,
robbery, or aggravated robbery.