You’re right that the question needed to be asked, but it looks like it’s been answered.
How has it been answered? I don’t think that they know anything. They are selling the crazed, jilted whacko because that is easier to sell and they can bring in more “experts”. In other words, Psychologists, or just people that don’t feel good about themselves because their girlfriends dumped them. The reality is that all the speculation of any cause is just that. The motivation of the media is obvious, they are selling their product. I wouldn’t believe a single thing that I heard until I see FACTS, not speculation...Just Sayin’