Nurses Who Kill säsong 2

Nurse Malcolm Webster was convicted for the murder of his first wife, Claire Morris. For 17 years it was believed to be an accident; until he staged another 'road accident' in New Zealand, involving his second wife, Felicity Drumm.

Vickie Dawn Jackson was described as sweet and 'gone to fat' by locals in her small Texas town. Why did Vickie kill off the friends and relatives of those whom she knew in Nocona, Texas?

Jeannie Miata was a nurse who killed a woman with a lethal dose of insulin. Experts analyse the actions and motive of this disturbing murderer.

On November 18, 2011, Roger Dean, a nurse at Quakers Hill Nursing Home in Sydney, Australia murdered 11 elderly residents after setting fire to the facility as they slept in a bid to hide evidence of his theft of painkillers.

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

Megan Haines, South African immigrant and mother of a dangerous and disaffected son, carries out a murderous rampage against the elderly in the quiet coastal town of Ballina, New South Wales.

Gary Davis told his Facebook friends that 'I hate old people' and days before two patients in his care were found dead, he predicted they would die.

Anne Grigg-Booth, who was responsible for administering painkilling injections to patients, was a heavy drinker with a passion for drugs. We hear from the doctor that Grigg-Booth's team lined up as an expert witness in her defence.

Wettlaufer, 49, of Ontario, intentionally administered fatal doses of drugs to her victims, aged 75 to 96, between 2007 and 2014. After killing, she would post some of her dozens of verses. Wettlaufer's victims included five women and three men.

Efren Saldivar confessed to killing 40 to 50 patients over an eight-year period. Quickly christened an "Angel of Death," he targeted patients who were already near death.