the Zen'ai Kaigi called Seinen Shiso Kenkyukai (Society for the Study of Youth Ideology), which represented a hard core within the umbrella organization, mainly yakuza. At the end of the 1960s, the Shiso Kenkyukai split from Zen'ai Kaigi . Its members received military training and were used to intimidate unpopular journalists and book authors. One of the victims of this organization was the journalist , whose book entitled Black Money was not published after multiple threats. In 1963, Kodama attempted to form a coalition of Japan's organized crime groups. However, Kazuo Taoka withdrew the Yamaguchi-gumi early on in talks, leaving Kodama with a Tokyo-centered group that would become known as the Kanto-kai. The organization was formed of seven yakuza groups (including the Sumiyoshi-kai and Matsuba-kai), with the purpose of fostering relations between the groups and promoting rightist goals. With Kodama unable to smooth over its internal conflicts, the Kanto-kai dissolved in January 1965. Kodama was able to grow his fortune until the mid-1970s. He owned shares in Hisayuki Machii's Ginza nightclub empire, a shipping company, a baseball team, a film studio, and several sports magazines. Kodama maintained close relations with LDP politicians, such as the yakuza-connected LDP Vice President Ōno Bamboku, and his influence did not suffer until he was identified as the key kuromaku in the Lockheed Corporation bribery scandal. Kodama had been a paid agent of Lockheed since 1958 and received $U.S.7 million for his help in arranging the TriStar aircraft deal. Lockheed scandal and final years In the 1970s, it came to light that Kodama had played a role in the Lockheed L-1011 bribery scandal, which effectively ended his career as a right-wing fixer. After the Lockheed scandal, disillusioned ultranationalist Roman Porno film actor Mitsuyasu Maeno attempted to assassinate Kodama by flying a Piper PA-28 Cherokee plane kamikaze-style into his mansion in Setagaya Ward's Todoroki. The attempt failed. Maeno hit the second floor of Kodama's mansion and died in the plane crash, but Kodama was unharmed in a different room. He was recovering from a stroke at the time. In June 1977, charges were brought against Kodama for tax evasion related to the scandal, but the trial was never completed before he died. Kodama died in his sleep of a stroke in Tokyo on January 17, 1984. Personal life Kodama was married twice. A brief 1935 marriage ended in divorce. In 1940, Kodama married his second wife,