Ewing's efforts kept all three men from the gallows, but other conspirators were hanged. For their roles in the assassination, Mudd, Arnold and Spangler were sentenced to federal prison at Fort Jefferson in the Dry Tortugas off Key West, Florida.
Thanks to Ewing's intervention, all three men avoided execution; however, other accomplices were hanged. For their part in the assassination, Mudd, Arnold, and Spangler received sentences of federal imprisonment at Fort Jefferson in the Dry Tortugas near Key West, Florida.