The culprit is the carpenter,Kazuhiko Miyatake. Since Kaneo Zenita had planned to cook using the new kitchen which utilise strong flames, Kazuhiko sabotaged the structures of Kaneo's house by building them with worn out bamboos from Kazuhiko's own house rather than new bamboos. Fresh Bamboos are very hard to be ignited compared to already worn out bamboos, which is why Kaneo's house easily burn when he uses strong flames when cooking.
The culprit is Saki Kataoka, Sayuri's sister. She used her computer to watch through internet camera at the town crossroad to makeup an alibi. The evidence is that she didn't known that apart from the sportcar accident and Kogoro flirting women that there is one more bigger accident that she supposed to acknowledge of nearby, due to the camera's position.
Saki confesses that she has always been envious of her sister, because Sayuri was the favorite child since the old days, became a famous idol and married (later divorced) her boyfriend Keiichi, but her last straw broke when Sayuri came to star in Saki's plays and performed even BETTER than her. She couldn't take it anymore as she didn't want to lose the cheering sound from the crowd to her.
The culprit is the head of nurse Yuko Morita. She used the 4 WD car's muffler that her fiance is driving to send carbon-dixode gas into Egashira's room via the drain pipe, which she send sleeping gas in first. Before committing the crime she went to Egashira's room to put a strand of hair to drain out all water from the sink's pipe. The evidence is that hamster was able to enter the room through draining pipe.
Morita confessed that she once caused a malpractice due to that she gave wrong medicine to people with same name and caused his death. Egashira accidentally know this so she silenced her. She just want to get married and be happy, which Conan complimented that "One cannot be happy over other suffering".
Afterward Conan and Ran discussed that Morita was really sympathetic as that malpractice day there were only three nurses and fifty patients. Kogoro then get a toothache again.
The culprit is Yumi Koizumi. She used a circular saw connected with two wooden logs as pendulum to kill Hatada. Her motive is the Hatada was responsible to the death of her cousin, a girl who once confessed to him but was rejected and humiliated. However, Nishiyama confesses that he was the one who goaded Hatada into doing that and Hatada truly realized that he destroyed the girl's life and wanted to atone for his sin by becoming a better man.
People
Shin Ito
17 years old
Beika east high school mystery meeting for the study
Koji Hatada
Victim (body cutting)
17 years old
Beika east high school mystery meeting for the study
Hiroshi Nishiyama
17 years old
Beika east high school mystery meeting for the study
