Ex-nurse served 3rd arrest warrant in serial murder case
Jiji -- Aug 19
A former nurse at a hospital in Yokohama, the capital of Kanagawa Prefecture, south of Tokyo, was served a third arrest warrant on Saturday in a serial poisoning murder case about two years ago.

The suspect, Ayumi Kuboki, 31, admitted the fresh murder allegations against her, the Kanagawa prefectural police department said.

According to the third arrest warrant, Kuboki allegedly killed Asae Okitsu, 78, by injecting an antiseptic into an intravenous drip bag for her kept at the nurse station on the fourth floor of Oguchi Hospital, now Yokohama Hajime Hospital, around between 7:45 a.m. and 5:30 p.m. on Sept. 15, 2016.

Okitsu's condition worsened suddenly after the intravenous drip was administered to the patient by a different nurse on the morning of Sept. 16, and she died around 1:40 p.m. the same day, according to the police.

Okitsu was initially judged to have died of illness. But the same surfactant substance as that used in the antiseptic was detected in her blood sampled before her death.

横浜市の病院で入院患者2人を殺害したとして元看護師の女が逮捕された事件で、警察は別の女性入院患者に対する3人目の殺人容疑で女を再逮捕しました。
News sources: Jiji, ANNnewsCH