Obsession

Murderous Morning: A heart-stopping crime novel with a stunning end. I have recently read the book "We keep the Dead close" by Becky Cooper. The author was obsessed with a then unsolved murder that happened about 50 years ago. The 23 year old Harvard student Jane Britton was raped and killed at night in her apartment. Cooper researched the case meticulously for ten years. Not least thanks to her efforts the cold case was solved two years ago. I was totally fascinated by this book, maybe because I know this kind of obsession for an unsolved or mysterious crime.
I remember many years ago I obsessed about the Lindbergh murder case (the baby of famous pilot Charles Lindbergh and his wife Ann was abducted and killed) because I had seen a documentary that disputed the fact that a German immigrant named Bruno Richard Hauptmann was the killer. Hauptmann was convicted and executed.
Is there an unsolved or disputed murder case that you obsess about? Or any unexplained deaths? I`m still captivated by the Dyatlov Pass mystery. You may have heard of the nine Russian college students who set out on a 16-day-trek through the Ural mountains about sixty years ago. When they didn´t return, a search party found their tent cut open from the inside. For some unknown reason, the experienced skiers had fled in panic, into a raging blizzard, without boots or coats, to a forest below. They all perished in the dark and freezing temperatures. There are a lot of conspiracy theories around this incident and I am not a friend of conspiracy theories. But the case is mysterious and tragic and triggers one's imagination.
Personally and as an author, I stick to fiction. That doesn`t mean I won`t be inspired by real incidents or cases (as probably a lot of authors are). But I really hope I won´t become obsessed like Becky Cooper because it would mean to be occupied by a case for a decade. I could write a lot of crime fiction in ten years.