Investigators will lie, grill for hours on end and withhold exonerating evidence — in effect do anything — to extract a confession from a suspect they have pegged for a crime, a 1994 parolee seeking a retrial to clear his name in the 1963 kidnap-murder of a Saitama Prefecture girl said Thursday in Tokyo.

Speaking at the Foreign Correspondents' Club of Japan, Kazuo Ishikawa, who appeared with his lawyer, Taketoshi Nakayama, pointed to discrepancies in the kanji used in an apparent ransom demand for ¥200,000 and an earlier document he wrote and also alleged that the state looked to him as a usual suspect because of his roots in Japan's former outcast class known as the "burakumin." He continues to claim he is innocent.

Ishikawa was arrested in 1963 for the kidnap-slaying of Yoshie Nakata in the town of Sayama. An autopsy carried out on her corpse at the time concluded she had been raped and strangled.