Detailed text transcripts for TV channel - KGO - 20181004:00:40:00
Operations john richardson. field tests of the pentagon letters indicated the possible presence of ricin. >> these cases usually are easy to solve, because people who put substances like this in the mail aren't very sophisticated. >> reporter: but tonight, the pentagon's spokesman says the letters appear to only contain castor bean seeds, which has to be processed in order to be turned into ricin. still, authorities are being extremely careful and charges could be filed if it is determined that the letters were intended as a threat. david, the suspect has been identified as william clyde allen...
Source: archive.org