A murder charge against a former medical professor accused of killing a patient as part of the Nazi's euthanasia program has being dropped after the 89-year-old woman was deemed unfit to stand trial. Dr. Rosemarie Albrecht, was suspected of killing a patient with an overdose of sleeping pills in 1941 as part of the Nazi drive against the mentally ill and physically disabled. The alleged victim, a 34-year-old woman, had been diagnosed as schizophrenic and recommended for sterilization by a Nazi court. German prosecutors had investigated the case for more than three years after details of the doctor's patients' medical records were released from East German secret police files.