A woman working in a hospital admitted taking the lives of three patients under her care. Respiratory therapist Jennifer Hall caused grave harm to patients at Hedrick Medical Center in Chillicothe, Missouri, Oxygen reported. Hall joined Hedrick Medical Center in December 2001. Just two months later, a series of medical emergencies occurred with multiple patients, Oxygen reported. Fern Franco, 75 was the last patient to suffer the consequence of Hall’s alleged attacks, Oxygen reported. Franco was admitted to the medical center on May 17, 2002, to receive treatment for pneumonia in her lungs. Th…