They both said the downhill baseline and identical teetering block letters, notably the E's and B's, show that the same person addressed both envelopes My gosh I hope the FBI isn't using these people for analysis.
Here's the letter that went to Troxler again
This one looks like the handwriting of a very old man.
That letter to Troxler appears to have been written in the same hand as the other two letters, and I can see it is postmarked St. Petersburg. I can't quite make out the postmark date. It's some date in October, isn't it?
I increasingly suspect that Atta or one of the other hijackers put together these anthrax envelopes before Sept. 11, and that confederates have been mailing them since then. I wonder how they are transmitting them to different locations before posting.