Terri Rachals
Nurse, attacked a large number of patients under her care by
injecting them with unfriendly substances. Nine died.
http://www.geocities.com/TimesSquare/Arcade/7187/rachals.htm
http://www.websurfer13.com/Absintheterri_rachals.htm
http://faculty.ncwc.edu/toconnor/401/401lect11.htm