Student said he made ricin , FBI affidavit says . Comment: Milzman was arrested by the FBI and charged with possessing a biological toxin , according to an FBI affidavit . Substance could have potentially killed had it been inhaled or injected , court document says . Georgetown checks out dorm and campus is safe ; no one has reported exposure to ricin .
Student said he made ricin , FBI affidavit says . Comment: Substance could have potentially killed had it been inhaled or injected , court document says . Georgetown checks out dorm and campus is safe ; no one has reported exposure to ricin .