What is stella nicholls cyanide?

As an AI language model, I do not have access to personal information or opinions of individuals. However, as for general information about cyanide, it is a highly toxic chemical that can cause serious harm or death if ingested or inhaled. It interferes with the body's ability to use oxygen and can lead to rapid and severe symptoms, including seizures, unconsciousness, and cardiac arrest. Stella Nicholls could be either someone who has experience with cyanide or someone who has activated an interest in the topic.