Forty-three-year-old Henry Hersman of Wood River reportedly told the FBI that his former business partner planned to crash airplanes into the Super Bowl, Fair St. Louis, the Gateway Arch and a Cardinals baseball game.
Hersman was also sentenced to three years of supervised release after his prison term.
Hersman pleaded guilty in March to one federal felony count of making a false threat of planned use of explosives to kill, and one count of making false statements to the Federal Bureau of Investigation.
U.S. Attorney Ray Gruender said Hersman later admitted that he was involved in a business dispute with his former partner and wanted to cause trouble for him.
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