First, here's the article. Basically a 40yo woman and her husband went to the woman's parents home, shot the woman's mother and brother. The woman's father was able to get a pistol and take out both his daughter and her husband. Other than being a very weird and tragic story, it is noteworthy that the father apparently used a ".22 revolver" and was able to take his daughter out with one (head) shot and her husband with an unspecified number of shots (both daughter and hubby were armed with shotguns). Since effective calibers for self defense is a topic near and dear to many, just thought many would find this interesting.