PIERRE - A South Dakota man accused of threatening U.S. Senator Tim Johnson because the senator supports gun control has been taken into custody.

According to documents filed in federal court, Jonathan Constantine of Piedmont has been charged with transmitting in interstate commerce a threat to injure another.

Constantine allegedly posted a message March 16 on the senator's Facebook page. An affidavit by an FBI agent says Constantine wrote: "I'm giving you a last warning tim. Stop supporting gun control. It will be the last thing you ever do. If you want to end up dead somewhere just keep supporting it."

The affidavit says Constantine showed up at the senator's Rapid City office on April 11 and screamed at the staff. Constantine had his initial court appearance Monday.

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