Benjamin Geen
Benjamin Geen is a British repeat murderer and former nurse who was convicted of killing two of his own patients and committing grievous bodily harm against 15 others while working at Horton General Hospital in Banbury, Oxfordshire in 2003 and 2004. Geen, who was believed to be motivated by his 'thrill-seeking' temperament, injected a number of patients with dangerous drugs in order to cause respiratory arrest so he could enjoy the 'thrill' of resuscitating them.