"...The lapse of time between the various offenses and the indictment of defendant on July 27, 1967, is considerable but is adequately explained by the record. The murder weapon in each case was unique, insulin. The deaths of each of these victims were initially attributed to causes other than a criminal agency. Suspicion of insulin and of defendant as the person administering the insulin was not aroused until the death of Zella in 1956. It was not until years later, after much painstaking and persistent investigation by law enforcement officers, and the discovery of advances made in {Page 3 Cal.3d 621} medical knowledge and techniques, that sufficient evidence could be accumulated to charge defendant with these deaths. Unfortunately, by then other of defendant's victims had lost their lives. This is the only known reported case of murder by insulin poisoning in the United States. Only one other, reported world-wide, occurred in England in 1956. ..."
"...Dr. Grace Fern Thomas, a psychiatrist and an expert in insulin shock therapy, and director of the insulin shock department at the time defendant was at Camarillo, testified as to the procedures on the ward. A precise dosage of insulin was measured for each person at a particular time. At a specific level that patient would go into shock in approximately two hours after the injection. Patients do not progress at the same level. Careful watch must be kept of the pulse, color, blood pressure, general condition, and neurological signs, such as pupillary changes and body motions. When a patient is going into progressive stages of coma he sweats very profusely and breathes very heavily. Saliva is secreted in large amounts, mucous flows freely and mixes with the saliva, and the patient must be carefully watched, turned, or assisted so that he does not aspirate the fluid into his lungs. Otherwise bronchopneumonia may develop, leading to death. The gag reflex and the cornea reflex are lost. Convulsions may occur, and medication is given to prevent this. The extremities may stiffen. At a relatively deep level of coma the Babinski test (scatching the sole of the foot in a certain manner) will cause a reflex known as the Babinski response (toes fan out). The patient must be brought out of the coma within 10-15 minutes thereafter. This is done by administering glucose through gastric tubes, and if this is not effective, glucose is administered intravenously to raise the blood sugar.
Can't get too much of a good thing in this case.
Her brain gets more damaged in starvation.