Dr. Randeep Mann of Pope County appeared briefly before U.S. Magistrate Beth Deere on Tuesday. Mann is accused of illegally owning grenades and rifles, and he and his wife are also accused of trying to obstruct investigators. His wife is free pending trial.
A federal agent testified at a hearing last week that Randeep Mann is the "prime suspect" in the bombing of Dr. Trent Pierce last February.
Pierce was injured when a bomb went off in the driveway of his West Memphis home. The state board had previously revoked Mann's license to write prescriptions.
Mann's trial is set for Aug. 31.
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