Detective Conan S01 E455 The Overturned Conclusion (2)

"One truth prevails."

Genta hits a baseball through the window of Haramoto's house and breaks a vase. They go inside to apologize and find Haramoto dead. Conan realizes that the victim must have known the killer, and Manda is acting suspicious especially when he interrupts the housekeeper when she mentions the mystery Haramoto was working on.