The body of a man was found decomposing in a cornfield near West Alton, Missouri. More than 12 years later, the FBI released two notes containing his death message. — The body of a man was found decomposing in a cornfield near West Alton, Missouri. There were no signs of shooting, beatings, or abuse, even though the body of the victim, who was estimated to have been dead for only 3 days, was no longer recognizable. More than 12 years…