As an excuse for the conduct of Matthias, or Matthews, which was his real name, he was supposed by some to be laboring under monomania, partly hereditary and partly superinduced by religious fanaticism and frenzy. Still, he was not without "method in his madness;" and it seems evident that, with a tinge of insanity, he was also much of a knave, and probably a dupe in part to his own imposture. During his confinement in jail, awaiting his trial for the alleged murder of Mr. Pierson, Matthias issued a decree, commanding all the farmers to lay aside their ploughs, declaring, "As I live, there shall be no more sowing in the earth until I, the twelfth and last of the apostles, am delivered out of the house of bondage." He also prophesied that if he were convicted, White Plains should be destroyed by an earthquake, and not an inhabitant be left to tell the tale of its destruction; and strange to say, men were not found wanting who believed in his absurd and blasphemous predictions. On trial, the physicians who had examined the stomach of the deceased were led to suspect poison, but could not say positively that poison had been administered; whereupon the prisoner was discharged, on the ground that no evidence had been produced to convict him either of murder or manslaughter. In the case of his arrest at the instigation of Mr. Folger, that gentleman afterwards wrote to the district attorney, requesting him to dismiss the case, it not appearing to be an indictable one, and declaring, that the day--"so far as passing himself for a _pure_ and _upright_ man--has passed, and there is no danger of his imposing upon any one here or elsewhere." In a letter written by Mr. Folger, dated New York, Nov. 8, 1834, and published in the Commercial Advertiser, Mr. Folger says, "My object is now to rid myself of him and all connected with him, with as little trouble as possible. Mr. Pierson, myself, and family have been deeply, very deeply deluded, deceived, and imposed upon; and I regret exceedingly that the former could not have been spared to witness the deep deception. We are sensible of our error--we repent it sincerely; and although we cannot expect to recover, at present, the situation which we held in society previous to our acquaintance with this vile creature, yet in time we shall be able to show that we are enemies to him, and all who undertake to sustain him in his wickedness and plans to destroy us."