Most people go into nursing for their passion to help people but unfortunately some have different goals. As for Orville he became the defibrillator of evil.

https://caselaw.findlaw.com/court/in-supreme-court/1086530.html

https://www.tribstar.com/news/local_news/angel-of-death-dies-in-prison/article_67d62ae6-084b-5e4c-b707-f9aed13261f3.html

https://murderpedia.org/male.M/m/majors-orville.htm

https://www.oxygen.com/license-to-kill/crime-time/angel-of-death-orville-majors-nurse

https://www.oxygen.com/license-to-kill/crime-time/angel-of-death-orville-majors-nurse