1x6 - 911: Did the Killer Call?

A wife is killed while calling 911 to report a break-in and her husband is shot in the leg; he claims it was an intruder, but the police have their doubts. A man and his roommate call 911 to report that he awoke to find his girlfriend dead and believed she committed suicide. Also, a woman calls 911 after arriving home with her children to find her husband dead in the garage.