And you can be certain with the talk of others in the house that he would be lynched the second he was a suspect again, whether or not he actually committed the crime. [his own expression becomes vaguely perplexed for a second, but he moves on with a wave of the hand.]

Anyway, it gives us a good look at how impossible it is for a successful murderer to kill twice. Even if Annie had not confessed to her own crime, she was the second highest in suspicion after Ukraine. Spain's trial left no one else but him as a suspect. It is simply not feasible for one person to commit two kills and get away with it.