His lordship commenced his summing up by informing the jury that in the first place they must be satisfied that the prisoner was the person who killed Mr. Glenthorpe. He did not think they would have much difficulty on that head, because, although the evidence was purely circumstantial, it pointed strongly to the accused, and the defence had not seriously contested the charge. Therefore, if they were satisfied that the accused did, in fact, cause the death of Mr. Glenthorpe, the only question that remained for them to decide was the state of the prisoner's mind at the time. If they were satisfied that he was not insane at the time, they must find him guilty of murder. If, however, they came to the conclusion that he was insane at the time he committed the act, they would return a verdict that he was guilty of the act charged against him, but that he was insane at the time.

His lordship painstakingly defined the difference between sanity and insanity in the eyes of the law, but though his precise and legal definition called forth appreciative glances from the lawyers below him, it is doubtful whether the jury were much wiser for the explanation. After reviewing the evidence for the prosecution at considerable length, his lordship then proceeded, with judicial impartiality, to state the case for the defence. The case for the prisoner, he said, was that he had been strange or eccentric ever since he returned from the front suffering from shell-shock, that his eccentricity deepened into homicidal insanity, and that he committed the act of which he stood charged while suffering under an attack of epilepsy, which produced a state of mind that led the sufferer to commit an act of violence without understanding what he was doing. In view of the nature of this defence the jury were bound to look into the prisoner's family and hereditary history, and into his own acts before the murder, before coming to a conclusion as to his state of mind.

The defence, he thought, had proved sufficient to enable the jury to draw the conclusion that Lady Penreath, the mother of the prisoner, was an epileptic. The assertion that the prisoner was an epileptic rested upon the evidence of Sir Henry Durwood, for the evidence of Miss Willoughby and the family doctor went no further than to suggest a slight strangeness or departure from the prisoner's usual demeanour. Sir Henry Durwood, by reason of his professional standing, was entitled to be received with respect, but he had himself admitted that he had had no previous opportunity of diagnosing the case of accused, and that it was difficult to form an exact opinion in a disease like epilepsy. Dr. Horbury, on the other hand, had declared that the prisoner showed nothing symptomatic of epilepsy while awaiting remand. In Dr. Horbury's opinion, he was not an epileptic. Therefore the case resolved itself into a direct conflict of medical testimony, and it was for the jury to decide, and form a conclusion as to the man's state of mind in conjunction with the other evidence.

"The contention for the defence," continued his lordship, leaning forward and punctuating his words with sharp taps of his fountain pen on the desk in front of him, "is this: 'Look at this case fairly and clearly, and you are bound to come to the conclusion that this man is not in a sound frame of mind.' The prosecution, on the other hand, say, 'The facts of this case do not point to insanity at all, but to deliberate murder for gain.' The defence urge further, 'You have got to look at the probabilities. No man in prisoner's position, a gentleman by birth and upbringing, the heir of an old and proud name, with a hitherto unblemished reputation, and the prospects of a long and not inconspicuous career in front of him, would in his senses have murdered this old man.' That is a matter for you to consider, because we do know that brutal crimes are committed by the most unlikely persons. But the prosecution also allege motive, and you must consider the question of motive. It is suggested, and it is for you to consider whether rightly or wrongly suggested, that there was a motive in killing this man, because the prisoner was absolutely penniless and wanted to get money."

"Gentlemen, you will first apply your minds to considering all the evidence, and you will next consider whether you are satisfied that the prisoner knew the difference between right and wrong so far as the act with which he is charged is concerned. You must decide whether he knew the nature and quality of the act, and whether he knew the difference between that act being right, and that act being wrong. I have already pointed out to you that the law presumes him to be of sane mind, and able to distinguish between right and wrong, and it is for him to satisfy you, if he is to escape responsibility for this act, that he could not tell whether it was right or wrong. If you are satisfied of that, you ought to say that he is guilty of the act alleged, but insane at the time it was committed. If you are not satisfied on that point, then it is your duty to find him guilty of murder. Gentlemen, you will kindly retire and consider your verdict."

The jury retired, and there ensued a period of tension, which the lawyers employed in discussing the technicalities of the case and the probabilities of an acquittal. Mr. Oakham thought an acquittal was a certainty, but Mr. Middleheath, with a deeper knowledge of the ways of provincial juries, declared that the defence would have stood a better chance of success before a London jury, because Londoners had more imagination than other Englishmen.

"You never can tell how a d——d muddle-headed country jury will decide a highly technical case like this," said the K.C. peevishly. "I've lost stronger cases than this before a Norfolk jury. Norfolk men are clannish, and Horbury's evidence carried weight. He is a Norfolk man, though he has been in London. One never knows, of course. If the jury remain out over an hour I think we will pull it off."

But the jury returned into court after an absence of forty minutes. The judge, who was waiting in his private room, was informed, and he entered the court and resumed his seat. The jury answered to their names, and then the Clerk of Arraigns, in a sing-song voice, said:

"Gentlemen, have you agreed upon your verdict? Do you find the prisoner guilty or not guilty of wilful murder?"

"Guilty!" answered the foreman, in a loud, clear voice.