After having an uncomfortable run in with a certain Mr. Stanford, I examined the body. Definitely a poisoning, but there was something else here as well. The manner of the poisoning was fascinating.
A cut on the victim's arm was the obvious insertion point of the poison. Indeed, a clever way to poison someone in public.
Then, there was the note. Obviously, notes are a favorite of Corpse. Indeed, a clever name, for adding another corpse to his repertoire cements the meaning.
I need to visit with Inspector Lestrade. There are things the people of London can do to help catch this villain.