J.D. Reamer, a prominent Hagerstown, Md. merchant, was arrested and sent to Old Capitol Prison with the alleged conspirators in the murder of President Lincoln.

Mr. Reamer’s crime: In a private conversation, he predicted the exact day of the president’s death.

Source: “The Terrible Tragedy at Washington: Assassination of President Lincoln, Last Hours and Death-Bed Scenes of the President,” Barclay & Co., 1865