Millionaire quizzed over cyanide death in new Japanese 'black widow' case.

                               

Chisako Kakehi, who benefited to the tune of 800 million yen ($6.8 million) over the past 20 years, according to Japanese media, denies any wrongdoing.

"I didn't kill him. I don't know how to kill ..." she told police, according to CNN affiliate TV Asahi.

But an autopsy report on Iso Kakehi, her fourth husband to die, found cyanide in his stomach and blood.

The 75-year old died in December, less than two months after their wedding. It triggered a police investigation into the case, which culminated in Kakehi's arrest in Kyoto on Wednesday.  

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http://edition.cnn.com/2014/11/21/world/asia/japan-black-widow-murder/index.html?hpt=hp_c4