Conan realizes who the murderer is and reveals the identities of the "Red man", "White man", and "Yellow man" are related to types of cars: The "Red man" is Subaru Okiya, he is compared to a fire truck since he waters the plants; The "White man" is Ryohei Hosoi, he is compared to an ambulance since he gave Kaito a band-aid after scrapping his knee; The "Yellow man" is Ginya Makabe, he is compared to a construction vehicle since Kaito saw him suspiciously digging in the garden. Ginya confesses to arson and reveals that he was burying the money he earned as a day trader to avoid taxes. When Kaito's father found out, they got into an argument resulting in Ginya pushing Kaito's father down a flight of stairs. Ginya, believing Kaito's father is dead, burns the building down to hide, what he believed to be, the murder. As Ginya is arrested, the Detective Boys ask why Conan was called Kuroshiro; Conan tells them he was compared to a police car. Subaru overhearing the Detective Boys talk about professor Agasa, asks them to introduce him to Agasa so he could become an apprentice and perhaps find a place to stay. Haibara refuses to allow Subaru to stay with the professor believing he is part of the Black Organization. Conan gives Subaru the keys to his house telling him Shinichi would allow it. The next day, Ran and Sonoko head to Shinichi's house to clean it and run into Subaru. After witnessing his deduction skills, Sonoko decides to ask Shinichi and Subaru to solve a case involving paper planes with weird symbols on it found throughout the city in order to find out who would solve it first. Conan texts Ran the answers to his deduction the same moment Subaru explains his theory; They both believe the plane is an SOS.