Either someone is counting on the public being ignorant of Arsenic and its effects, or it was the only poison they could think of on short notice.
There are so many better, quicker, easier poisons, and prussic acid still breaks down and goes away in 24 hours....
How long does it take for cyanide to break down? I know it’s detectable and that it kills quickly.
what is Prussic acid?
what is Prussic acid?