Kitamura, Koreyoshi

北村是良

He serves as the Deputy Director of the National Police Agency and is Soichiro Yagami's superior.
He and his family, along with Yagami's, were investigated by FBI agent Raye Penber regarding the leak of information to Kira. After Penber was killed by Kira, L ordered similar investigations into both families: Kitamura's daughter was even approached by Mogi, who posed as L, implying she was suspected of being Kira — while L himself approached the actual suspect, Light Yagami. Kitamura confronted Soichiro Yagami about his daughter's treatment and was frustrated by Soichiro's insistence that secrecy prevented him from revealing investigation details, although Soichiro did admit that his own son was the real suspect.
Kitamura later helped Soichiro escape the Sakura TV studio after Soichiro had seized the Kira tapes that the station was broadcasting, which had led to several deaths by Kira. Kitamura sent a riot squad equipped with police buses, shields, and face-covering helmets to get Soichiro safely out of the building.
However, he was later forced to call off the Kira investigation when politicians were threatened by Kira and bribed by the Yotsuba Group, for whom Kira was then working. He told Soichiro that he had tried to oppose the move but had little choice but to comply, while telling the public that the investigation was still ongoing. He did offer Soichiro the right to continue the hunt for Kira, while performing other non-connected police duties, provided that he cut off all ties with L. Soichiro and other members of the Kira Investigation Team decided instead to quit the police force and continue to work with L, eventually exposing Yotsuba and its connection to Kira.
Death