Yandere: fact or fiction?

Woman A lived in a small town in the middle of America. After being in a romantic relationship with Woman B for around seven years, things began to deteriorate. In 2007, while browsing myspace, Woman A met Woman C and quickly became infatuated with her. Before long, Woman A attempted to impress Woman C by telling her a wide variety of lies, including claiming to not only be a firefighter, but one of the firefighters on duty in New York City during the September 11th, 2001 terrorist attacks. Woman A, who was an alcoholic, also claimed to have liver cancer, and that her drinking and cancer would one day kill her. There were no limits to the lies Woman A would tell in order to make Woman C fall for her.

Eventually, the two girls met up to go out on a date without Woman B's knowledge. Woman C had been told that Woman A and Woman B were only roommates; she had no idea that they were much more than that. While out on a date, Woman A and Woman C went to a bowling alley, as well as a funeral home, where Woman A dramatically picked out her own coffin, once again pretending to have cancer for sympathy and positive attention. Later that night, they returned to Woman A's apartment and shared intimate relations. Within a day or two, Woman B was reported missing and discovered inside the trunk of her own vehicle, dead. It was soon determined that Woman A was the murderer through forensic evidence. This was backed by her eventual admission of lying during the investigation.

Did this story actually occur or did I make it up? I'll respond with the answer to the first person who comments on this post.