 How'd you know? I'll even wager that the poison you did find in the body was a thousand times more deadly. Right, Inspector? Yeah, but after all... Inspector, I'm surprised at you. Did you forget that smell of acid when we came into the death room? I'm sure you smelled almonds the same as I did. Yeah, but all that talk about poison candy threw me off the track. And the acid was administered by a hypodermic needle in the vein under the elbow. Am I right, Inspector? Yeah. And of course, Herbert Westley was first knocked out by that blow on the head. The bruise, you remember, Inspector?