Nurses who kill…why?

Whether healthcare serial killers enter the field in order to kill – or fall into it – is difficult to say.

A “rare few” enter the profession to become “angels of death,” while many transform into killers on the job, Prof Ramsland said.

Prof Yardley said it was often a combination of the two.

“These are individuals who will have obtained a sense of power and enjoyment from harming people in the past and see opportunities to escalate this behaviour in a hospital when they become aware of the access and opportunities that this setting affords,” she said.