On 1 May 2025, the U.S. Army Military District of Washington OSJA conducted a Law Day LPD at Grant Hall. The courtroom is the site of the military tribunal, held from May through June 1865, of those thought responsible for the plot to assassinate President Abraham Lincoln. The building was originally part of Washington's Federal Penitentiary from 1829 to 1868, and the third floor was restored to depict the courtroom as it appeared during the 1865 trial, complete with artifacts and documentation from the National Defense University Library. The executions of the four conspirators sentenced to death by hanging took place on the gallows in the Penitentiary courtyard - the location being the southeast corner of today's tennis courts on Fort McNair, DC. The LPD was led by CPT Kendall Stanley and taught by Mr. Adam Oler's, retired USAF JAG, Associate Dean of Academics, National War College.
"Heed the Guardian!"