Cyanide in a cigarette?

Potassium cyanide is a compound with the formula KCN.

Fate plus a few grains of potassium cyanide.

In Japan, chloroephedrine, methylephedrine, dimethylpropamine, phenylacetoacetonitrile (benzylcyanide) and deprenyl were controlled substances.

One takes cyanide, another would have let her arm be broken. Neither would talk.

While they're not amino acids, we're now finding things like propane and benzene, hydrogen cyanide, and formaldehyde.