Samuel Alexander Mudd (December 20, 1833 – January 10, 1883) was an American physician who was imprisoned for conspiring with John Wilkes Booth in the assassination of President Abraham Lincoln.

Working as a doctor and tobacco-farmer in Southern Maryland, Mudd used slaves and declared his belief in slavery as a God-given institution. The Civil War seriously damaged his business, especially when Maryland abolished slavery in 1864. That year, he first met Booth, who was planning to kidnap Lincoln, and Mudd was seen in company with three of the conspirators. However, his part in the plot, if any, remains unclear.

After mortally wounding Lincoln on April 14, 1865, Booth rode with conspirator David Herold to Mudd’s home in the early hours of April 15 for surgery on his fractured leg before he crossed into Virginia. Some time that day, Mudd must have learned of the assassination but did not report Booth’s visit to the authorities for another 24 hours. That appeared to link him to the crime, as did his various changes of story under interrogation. On April 26, he was arrested. A military commission found him guilty of aiding and conspiring in a murder, and he was sentenced to life imprisonment, escaping the death penalty by a single vote.

Mudd was pardoned by President Andrew Johnson and released from prison in 1869. Despite repeated attempts by family members and others to have it expunged, his conviction has never been overturned.

More Info: en.wikipedia.org