Between April and August 2016, the fourth floor was plagued by a series of unsettling problems — including ripped nurses’ uniforms and drinks that were found spiked with unknown substances.
Police began investigating following Nishikawa and Yamaki’s deaths and found 10 unused antiseptic-laced IV bags with tiny syringe holes in the rubber seal.
When they examined all of the nurses’ uniforms, they found the chemicals around a pocket on Kuboki’s uniform.
Police questioned her in late June after she quit the hospital and she allegedly admitted to killing her patients on the second day of questioning.
Kuboki earned her nursing license in 2008 and worked at another hospital before coming to Oguchi in May 2015.
In December last year she told Asahi Shimbun: “I have worked hard to help patients die in peace, so I was shocked by the incidents.”
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