ONTARIO, CANADA — 3 June 2017

A former nurse has pleaded guilty to first-degree murder in the deaths of eight nursing home residents in one of the worst serial-killer cases in Canadian history.

Elizabeth WETTLAUFER also pleaded guilty to four counts of attempted murder and two counts of aggravated assault.

The 49-year-old, who appeared in a Woodstock, Ontario, courtroom, admitted to killing eight seniors and hurting six others.

Wettlaufer acknowledged under questioning from the judge that she injected all 14 with insulin for no medical reason.

All the incidents allegedly occurred between 2007 and 2014 in three Ontario long-term care facilities where Wettlaufer worked as a registered nurse.