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Defense counsel was giving his summation in a case involving a client who had been charged with murdering his wife, even though her body had never been found. He tried to the best of his ability to sow the minds of the jurors with the seeds of reasonable doubt, dramatically proclaiming that nobody could demonstrate that the alleged victim was even dead. Every eye in the courtroom gazed in the direction indicated by his outstretched arm as he pointed to the doors at the back of the courtroom and thundered, “Why, she might walk through those doors any second now!”

It was a masterful technique. When the jurors realized that they themselves had been expecting the supposedly dead woman to burst through the courtroom doors just then, how could they possibly maintain they were sure beyond a reasonable doubt that the defendant had killed her?

The prosecutor was undaunted. Slowly rising from his seat behind the table, he too gestured towards the courtroom doors. But his voice was calm as he looked the jurors in the eye and began to speak: “Every head in this courtroom turned toward that door just now — every head except one, that of the defendant. He didn’t bother to look because he knows she’s not going to walk through that door. He killed her.”

--Snopes