John Frederick Parker

[RJNorton]

One of Lincoln's other bodyguards, William H. Crook, said of Parker: "Had he done his duty, I believe President Lincoln would not have been murdered by Booth. Parker knew he had failed in duty. He looked like a convicted criminal the next day. He was never the same man afterward."

Parker was charged with neglect of duty, and there was a trial. But the case was dismissed, and the trial record of the Police Board disappeared.