The Woman by the Window [Jubensha Experience]

Late at night, the computer chimed with a notification sound. Out of habit, I was about to close it, but then I noticed a new message on a forum I had been following. Curiosity got the best of me, and I opened this long-neglected forum, only to find that the atmosphere was unusually active. I glanced at the calendar. Oh, it's been ten years. It's been a decade since that unsolved dismemberment case. How is she doing down there? What really happened 10 years ago?