What are the facts in relation to this presence? Frank Knapp is proved to have been a conspirator, proved to have known that the deed was now to be done. Is it not probable that he was in Brown Street to concur in the murder? There were four conspirators. It was natural that some one of them should go with the perpetrator. Richard Crowninshield was to be the perpetrator; he was to give the blow. There is no evidence of any casting of the parts for the others. The defendant would probably be the man to take the second part. He was fond of exploits, he was accustomed to the use of sword-canes and dirks. If any aid was required, he was the man to give it. At least, there is no evidence to the contrary of this.
Aid could not have been received from Joseph Knapp, or from George Crowninshield. Joseph Knapp was at Wenham, and took good care to prove that he was there. George Crowninshield has proved satisfactorily where he was; that he was in other company, such as it was, until eleven o'clock. This narrows the inquiry. This demands of the prisoner to show, if he was not in this place, where he was. It calls on him loudly to show this, and to show it truly. If he could show it, he would do it. If he does not tell, and that truly, it is against him. The defence of an alibi is a double-edged sword. He knew that he was in a situation where he might be called upon to account for himself. If he had had no particular appointment or business to attend to, he would have taken care to be able so to account. He would have been out of town, or in some good company. Has he accounted for himself on that night to your satisfaction?
The prisoner has attempted to prove an alibi in two ways. In the first place, by four young men with whom he says he was in company, on the evening of the murder, from seven o'clock till near ten o'clock. This depends upon the certainty of the night. In the second place, by his family, from ten o'clock afterwards. This depends upon the certainty of the time of the night. These two classes of proof have no connection with each other. One may be true, and the other false; or they may both be true, or both be false. I shall examine this testimony with some attention, because, on a former trial, it made more impression on the minds of the court than on my own mind. I think, when carefully sifted and compared, it will be found to have in it more of plausibility than reality.
Mr. Page testifies, that on the evening of the 6th of April he was in company with Burchmore, Balch, and Forrester, and that he met the defendant about seven o'clock, near the Salem Hotel; that he afterwards met him at Remond's, about nine o'clock, and that he was in company with him a considerable part of the evening. This young gentleman is a member of college, and says that he came to town the Saturday evening previous; that he is now able to say that it was the night of the murder when he walked with Frank Knapp, from the recollection of the fact, that he called himself to an account, on the morning after the murder, as it is natural for men to do when an extraordinary occurrence happens. Gentlemen, this kind of evidence is not satisfactory; general impressions as to time are not to be relied on. If I were called on to state the particular day on which any witness testified in this cause, I could not do it. Every man will notice the same thing in his own mind. There is no one of these young men that could give an account of himself for any other day in the month of April. They are made to remember the fact, and then they think they remember the time. The witness has no means of knowing it was Tuesday rather than any other time. He did not know it at first; he could not know it afterwards. He says he called himself to an account. This has no more to do with the murder than with the man in the moon. Such testimony is not worthy to be relied on in any forty-shilling cause. What occasion had he to call himself to an account? Did he suppose that he should be suspected? Had he any intimation of this conspiracy?
Suppose, Gentlemen, you were either of you asked where you were, or what you were doing, on the fifteenth day of June; you could not answer this question without calling to mind some events to make it certain. Just as well may you remember on what you dined each day of the year past. Time is identical. Its subdivisions are all alike. No man knows one day from another, or one hour from another, but by some fact connected with it. Days and hours are not visible to the senses, nor to be apprehended and distinguished by the understanding. The flow of time is known only by something which marks it; and he who speaks of the date of occurrences with nothing to guide his recollection speaks at random, and is not to be relied on. This young gentleman remembers the facts and occurrences; he knows nothing why they should not have happened on the evening of the 6th; but he knows no more. All the rest is evidently conjecture or impression.
Mr. White informs you, that he told him he could not tell what night it was. The first thoughts are all that are valuable in such case. They miss the mark by taking second aim.
Mr. Balch believes, but is not sure, that he was with Frank Knapp on the evening of the murder. He has given different accounts of the time. He has no means of making it certain. All he knows is, that it was some evening before Fast-day. But whether Monday, Tuesday, or Saturday, he cannot tell.
Mr. Burchmore says, to the best of his belief, it was the evening of the murder. Afterwards he attempts to speak positively, from recollecting that he mentioned the circumstance to William Peirce, as he went to the Mineral Spring on Fast-day. Last Monday morning he told Colonel Putnam he could not fix the time. This witness stands in a much worse plight than either of the others. It is difficult to reconcile all he has said with any belief in the accuracy of his recollections.
Mr. Forrester does not speak with any certainty as to the night; and it is very certain that he told Mr. Loring and others, that he did not know what night it was.
Now, what does the testimony of these four young men amount to? The only circumstance by which they approximate to an identifying of the night is, that three of them say it was cloudy; they think their walk was either on Monday or Tuesday evening, and it is admitted that Monday evening was clear, whence they draw the inference that it must have been Tuesday.