the fbi found publications on how to safely handle ricin and how to detect it on his computer. also, agents say they spoke with a witness who told them that dutschke knows how to make a poison that could be sent to elected officials, and, quote, whoever opened these envelopes containing the poison would die. dutschke denied any involvement in this youtube video made prior to his arrest. >> i met with the fbi. i consented to a search saying, go ahead and search the house. i don't have anything at all to do with this. >> reporter: his lawyers have not yet commented on the information in the affidavit. the fbi says dutschke filed a civil lawsuit against the same person the fbi identified as its witness, but it was dismissed by a mississippi judge. that judge, sady holland, received one of the ricin laced letters. we spoke with judge holland's son, who beat dutschke in a race for the mississippi state house about a year earlier. >> i've actually decided that i