The May 14 sentencing for James Everett Dutschke has been moved to Oxford from Aberdeen.
The order was filed Tuesday in the U.S. District Court clerk's office. No explanation for the change was included with the order. Judge Sharion Aycock will preside over the 10:30 a.m. sentencing.
The 42-year-old Tupelo man pleaded guilty in January to charges of making ricin and sending letters dusted with the poison to President Barack Obama, Republican U.S. Sen. Roger Wicker and Mississippi judge Sadie Holland.
Prosecutors have recommended a 25-year sentence. It could run concurrently with the recommended 20-year sentence Dutschke faces in state court, where he pleaded guilty to unrelated fondling charges.
Poisoned letters addressed to Obama and Wicker were intercepted before delivery. One letter reached Holland. She was not harmed.