I love Texas.
Texas deadly force statutes are very reasonable, indeed.
Deadly force may be used to stop anybody who is threatening your life or anyone else's life, or robbing you or anyone else, or stealing your or anyone else's property, or fleeing after committing a crime. Furthermore, the b*st*rds cannot sue anyone who legitimately uses deadly force to stop them.
Additionally, we have approximately 400,000 persons who are licensed to carry a concealed handgun. It is safe to assume that a substantial number of these individuals are packing a weapon when they are in public, unless they are in a place where it is illegal to do so (e.g. schools, sporting events, bars, etc.)
Bottom Line: Violent crime has dropped substantially and is continuing to fall in recent years despite a rapidly increasing population.