S01E690: Yusaku Kudo's Unsolved Case (1)

Ran, Sonoko, and Sera find the body of a man in an alleyway with the kanji symbol for "death" written in blood next to it. Ran is reminded of a similar case that happened 10 years ago and heads over to the Kudo residence to look for the case file in the library. Shinichi remembers the case as the one his father walked away from claiming that the murderer would never reappear. Subaru joins the girls and Conan in their deductions.