22 "Guidance" Transcription: "Yūdō" (Japanese: 誘導) Naoto Hashimoto Toshiki Inoue Sayo Yamamoto March 14, 2007 (2007-03-14) March 23, 2008 After learning that Higuchi is Kira, L decides that the police must not apprehend him until they understand his killing method.