CNN Producer Kevin Bohn contributed to this story . Source : Feds to declare anthrax case open but not closed . James Brown , 62 , died last week as FBI prepared to charge him in 2001 attacks . Another source says Ivins used a machine to turn wet anthrax into dry powder . Authorities to make case public after sharing details with victims and relatives .
Source : Feds to declare anthrax case open but not closed . James Brown , 62 , died last week as FBI prepared to charge him in 2001 attacks . Another source says Ivins used a machine to turn wet anthrax into dry powder . Authorities to make case public after sharing details with victims and relatives .