Lucy Letby, a former nurse, has been accused of murdering 7 babies and attempting to kill another 10 in a neonatal ward in the U.K. between 2015 and 2016.

A German nurse admitted in court on Tuesday to murdering 100 patients with lethal injections so that he could play the hero by trying to revive them.

A provincial inspector says the agency that hired serial killer Elizabeth Wettlaufer and placed her at different long term care homes had a habit of failing to conduct background checks.