Man guilty of plot to kill FBI agent7/23/2008 10:56 PM 
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COLUMBIA (AP) -- Federal prosecutors said a 43-year-old Greenville man has been convicted of plotting to kill an FBI agent.
U.S. Attorney Walt Wilkins said a jury on Tuesday found Dwight Spears guilty of conspiring to kill Special Agent Brian Bryan.
Wilkins said Spears was in the Spartanburg County jail when he agreed to help fellow inmate Kenneth Manigan kill Bryan to keep the agent from testifying in Manigan's drug trial.
A third person, Marielena Ledy Martinez, agreed to post Spears' bond, give him a weapon and help him find Bryan. But Spears was arrested on an unrelated charge before he could try to kill Bryan.
Manigan and Martinez pleaded guilty to conspiracy earlier this month. All three will be sentenced later.
Spears' attorney did not immediately return a message seeking comment.