Guilt for most crimes requires two parts: - Intent, willfulness, recklessness or perhaps even negligence. This is the "mens rea" or "guilty mind" - An action which is a product of that guilty mind, the "actus reus" or "guilty act" Part of the latter is that the act has to actually reasonably be able to result in the harm of the crime.

I am not a lawyer, but the author of The Illustrated Guide to the Law is: http://lawcomic.net/guide/?p=266 You should read all of it.