Conan and I pieced together the evidence, following a trail of hints and misdirection. Finally, we uncovered the shocking truth.
As we arrived at the scene, I saw a police officer questioning Shoko. She seemed shaken but cooperative. Conan and I decided to investigate further.
We started by interviewing witnesses and gathering evidence. Conan noticed a small detail - a faint scratch on the windowsill. He explained that it was made by a fingernail, and the scratches seemed to be recent.
As we sipped our coffee, Conan suddenly looked serious. "Keitaro, I have a case for you. A former pupil of mine, a woman named Shoko Sato, has been accused of murder."