PghBaldy wrote: "2nd medical worker dead from cyanide in Pittsburgh this year. Other case was a doctor murdered by her creepy doctor husband."
I read about that connection in the linked story. The accused physician claims a work related need for the cyanide...plausible? I have no idea.
Comments at the linked article suggest a couple possibilities, including a love triangle gone horribly wrong...or someone possibly tampering with beverages in the employee lounge/fridge.
Not plausible.
Cyanide may be used in certain lab tests and a technician might have need for small quantities. There is no valid medical treatment which would use this substance and no reason for a Doctor to have any.