Nurses Who Kill

Nurse Malcolm Webster knew how to sedate someone so deeply that they simply would not wake . He was on the way to using his Nursing skills to kill a third woman when he was finally captured.

In June 2005, Hannah, 55, was convicted of murdering a 68-year-old Texas woman with a lethal dose of insulin. Working under the alias Jeannie M.

Nurse Roger Dean said he loved the residents at the care home where he worked just outside Sydney, Australia - but loved the drugs he was addicted to more.

Harvey is notable for having used numerous methods to kill, including arsenic; cyanide; suffocation; miscellaneous poisons; morphine; turning off ventilators.

Megan Haines was watching a TV Crime documentary with her partner when she boasted: "It is easy to kill someone. Inject them with insulin."

Someone had injected 83-year-old Gwen Fowler and 80-year-old Ryan Kelly with insulin - it was the only explanation for why they had become suddenly "unresponsive".

Standing six-feet tall, "all-powerful" and able to flout the rules with impunity was the description given to Nurse Anne Grigg-Booth in an official report into her actions.

Elizabeth Wettlaufer, the cat-loving Canadian nurse kept a sinister body of work online: nearly two dozen, often creepy poems - including one where she professes to love the "smell" of old folks.

Statistical analysis indicates that the number of murders committed by Saldivar could be as high as 200, but no convincing physical evidence is available to confirm or refute this possibility.