William A. White, 33, was found guilty on one count of solicitation.
White, of Roanoke, Va., faces a maximum penalty of 10 years in prison and a $250,000 fine. Jurors deliberated several hours following a two-day trial before U.S. District Judge Lynn Adelman, of Milwaukee, who was assigned to preside over the case in U.S. District Court in Chicago. A sentencing date was not immediately set, federal authorities say.
Wednesday's conviction is White's second federal conviction in just over a year. He is currently serving a 30-month federal sentence imposed last April after a federal jury in Roanoke convicted him in December 2009 of three counts of communicating threats in interstate commerce and one count of witness intimidation.
Authorities say that in 2008, White used a website he ran to solicit another person to injure the jury foreman in the case of Matthew Hale, the leader of a white-supremacist organization known as the World Church of the Creator. Hale was found guilty and sentenced to 40 years in prison for soliciting the murder of a federal judge in Chicago.