I disagree. This doesn't give you the alibi, since you have to be there in the same room to drop it. With the wireless mechanism, you could never be in the same room as the victim that day. You might never be within 50 feet of the victim. You might not be spattered with blood, but you might leave physical evidence of your presence at the scene. Logs can be electronically erased, which you can't do with metabolites of poison in the bloodstream.