Japan is for the most part a safe country. Gun-control laws are so strict in this East Asian nation of more than 120 million that fatalities remained in single digits last year.
And yet we still feel a palpable sense of relief when we make it through any given year without a mass murderer surfacing to inflict pain and suffering on their victims' families. Take the following cases, for example:
On Aug. 18, a former Yokohama nurse suspected of being a serial killer was served a third arrest warrant over several fatal poisonings at a hospital where she once worked. Ayumi Kuboki earlier told prosecutors she injected disinfectant into intravenous drip bags being administered to about 20 patients.