A later edition was published in 2014. The book details the work done by Langston, his colleagues and associates around the world to isolate the neurotoxic contaminant which caused the Parkinson's like symptoms in a number of heroin users and to develop methods of utilising this discovery. The book includes discovery of the dangers to researchers in handling the contaminant and some competition and contention between researchers. William Langston was head of neurology at Santa Clara Valley Medical Center in 1982 when a drug offender was admitted who could neither move or talk. He had been admitted from the county jail and initially treated as a malingerer but later admitted to the psychiatric unit with suspected catatonic schizophrenia. During an examination of the patient, Langston noticed his fingers moving, perhaps voluntarily, and wrapped them around a pencil. The patient began to write notes that indicated that his mind was normal but his body was not responding. He had taken heroin before the symptoms developed. Through coincidental personal connections and media presentations another 5 patients suffering the same symptoms were discovered. All had what appeared to be symptoms of advanced Parkinson's Disease. In an attempt to save their lives Dr Langston administered L-dopa, a drug then recently introduced to treat Parkinson's Disease. The patients responded and could move and talk. (Unfortunately all six patients later developed severe side effects.) The common link between the patients was the batch of heroin they had taken. Medical and police research established that the batch of synthetic heroin all six patients had used contained a neurotoxic contaminant, MPTP. MPTP (which sometimes taints MPPP, an effective synthetic opioid), is selectively toxic to the same nerve cells in the brain which die in Parkinson's disease, the substantia nigra. The discovery of the biologic effects of this compound led to a renaissance of the basic and clinical research in Parkinson's disease. The clinical implications of this case were ground breaking. Parkinson's Disease is only suffered by humans but animal testing is essential in drug development. Now Parkinson's Disease symptoms could be induced in monkeys by using MPTP and research could begin into drugs to treat the disease. "[W]hat had started as a drug tragedy was to open a new chapter of medical research which would offer hope to Parkinson's disease sufferers throughout the world." Awards Langston has received numerous awards, including the Distinguished Achievement Award from Modern Medicine,