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Two Japanese death row inmates executed over 1988 robbery-murders of Cosmo Research president and em

Dec 28, 2018 (Japan Times) - Two death row inmates who killed a company president and an employee at the firm were hanged Thursday morning in Osaka, the Justice Ministry said, bringing the number of executions in the country this year to 15.

The executions were the first carried out since 13 former members of the Aum Shinrikyo cult were hanged in July and the first ordered by Justice Minister Takashi Yamashita.

The two convicts were 60-year-old Keizo Okamoto, an ex-yakuza, and Hiroya Suemori, 67, a former investment adviser. They were hanged at the Osaka Detention Center.

They were both sentenced to death in September 2004 for fraud, kidnapping and murdering a president and worker of an investment company, as well as orchestrating another scam targeting a brokerage firm.

The two were convicted of kidnapping and strangling 43-year-old Kazuo Kengaku, the president of investment firm Cosmo Research Corp., in an apartment building in Osaka on Jan. 29, 1988, after robbing him of some ¥100 million in cash.

On the same day, they murdered Hiroyuki Watanabe, a 23-year-old employee of the investment firm. Watanabe had earlier been tricked into giving the two killers information about Kengaku’s whereabouts. To conceal the heinous crime, Okamoto and Suemori buried the two bodies in concrete and dumped them in a mountainous area of Kyoto Prefecture.

Okamoto and Suemori also took stocks worth ¥140 million from a brokerage firm and both were found to be illegally in possession of guns.

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Japan’s World Cup campaign ended in the cruelest possible fashion on June 29, as Gabriel Martinelli scored in the fifth minute of stoppage time to give Brazil a 2-1 victory over the Samurai Blue in their knockout match in Houston. Japan had led in the first half and were still level at 1-1 in the final moments, but Martinelli’s late strike sent Brazil into the Round of 16 and eliminated Japan from the tournament.

Strong earthquakes have continued to shake parts of Japan in recent weeks, with 11 temblors measuring lower 5 or above on the Japanese seismic intensity scale recorded across the country since April 2026.

A Kintetsu Railway train derailed inside Kyoto Station on the morning of June 29, forcing partial suspensions on the Kintetsu Kyoto Line for the rest of the day and causing long delays that hit commuters, students and tourists.

A section of stone wall at Hikone Castle, one of Japan’s few surviving original Edo-period castles and a National Treasure whose main keep remains intact more than 400 years after its construction, collapsed after heavy rain caused by Typhoons No. 7 and No. 8, Hikone city officials said.

Japan advanced to the knockout stage of the World Cup after a 1-1 draw with Sweden on June 25, finishing second in Group F and setting up a Round of 32 clash with Brazil in Houston.

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