On December 10, 1864, Milligan, Bowles, and Horsey were found guilty on all charges and sentenced to hang on May 19, 1865. Humphreys was found guilty and sentenced to hard labor for the remainder of the war, but his sentence was later modified, allowing his release. Efforts were made to secure pardons for Milligan, Bowles, and Horsey, with the decision passing to President Andrew Johnson following Lincoln's assassination. On May 16 the executions of Milligan and Bowles were postponed to June 2, and Horsey's sentence was commuted to life imprisonment. President Johnson approved commutation of the sentences for Milligan and Bowles to life imprisonment on May 30, 1865. The prisoners were transferred from Indianapolis to a federal prison at Columbus, Ohio.