Just Like a 17-Year-Old Crime Scene (Part Two).Conan and Subaru deduced that the culprit was Senba who made a blackjack using a sock and a heavy iron ball as a murder weapon then threw it along with the colored ball on the victim's roof to confuse the Hiyama’s bodyguards. Senba confessed that he did the crime in order to have his revenge. It was later found out that he had an accident planned by Hiyama's underlings so he can persuade Senba's wife and son to sell him their land, where their candy shop was built, without his authorization. Before the episode end, Conan and Akai (disguised as Subaru) rearranged the dying message left by Haneda Koji 17 years ago and soon discovered that "U MASCARA" actually means "ASACA RUM".