Sad that there are armed, amoral robbers in the world, sad that the husband was hurt. Sad, Yes, that this particular amoral robber was killed.
Not sad that Angela Patterson was ready to defend herself and her family, and that neither she nor her husband submitted to evil willingly. They could easily have been shot (as witnesses) over something as small as a stolen television -- good thing this burglar didn't rob an unarmed family next door.
timothy