In Washington's Old Penitentiary, the Commission in the Lincoln conspiracy trial begin their deliberations

At ten o'clock in the morning, the nine officers of the Commission to try the accused Lincoln murder plotters, having heard five weeks of testimony, met in closed session to begin their deliberations of guilt or innocence. The sentences were communicated to the accused on July 6, 1865, with four defendants condemned to death and the other four sentenced to long prison terms. The death sentences were carried out the next day.  (By John Osborne) 
Source Citation
Clara E. Laughlin, The Death of Lincoln: The Story of Booth's Plot, His Deed and the Penalty (New York: Doubleday, Page and Company, 1909), 190-191. 
Date Certainty
Exact
Type
Crime/Disasters
Lincoln's Assassination
Old Penitentiary, Washington D.C.
Date
Official Verdict of the Military Commission trying the Lincoln Conspirators, as endorsed by President Johnson, July 5, 1865
How to Cite This Page: "In Washington's Old Penitentiary, the Commission in the Lincoln conspiracy trial begin their deliberations," House Divided: The Civil War Research Engine at Dickinson College, https://hd.housedivided.dickinson.edu/node/43977.