[1Old Pro]

Noting that anthrax mail stopped, I suspect the mailer had limited supply. That's about all I can guess.

[Dales]

That is my guess, and was my guess way back then. If they had a ton, I would not have anticipated anthrax mailings continuing for a longer period of time, however. I would have anticipated the batch of mailings they/she/he did to be much more widespread. All at once.

[ARCADIA]

Or he intended to frighten not kill. (The letters alerted the recipient that they contained anthrax and told to recipient to take antibiotics) In this case, someone who saw the deaths may have just stopped.

[Scott from the Left Coast]

limited supply

This is exactly the point that a number of us here on FR were making during the height of the scaremongering -- and we were flamed wildly because we weren't wearing enough tin foil to satisfy those who were proclaiming that the "end had come" or that "the terrorists were just waitng for further instructions, or waiting till we attacked Afghanistan, or waiting until Venus, Saturn and Jupiter aligned".

Of course the supply is limited -- how much of this stuff can you obtain at any price??? From the wild scaremongering that was going on you'd have thought these guys had a fleet of tanker trucks full of the stuff.

[Dr. Eckleburg]

I suspect the mailer had limited supply...

Of oxygen, one hopes.

[MissAmericanPie]

It could be that the killer had a limited supply, and it also could be that he was taken out very quietly. I hope it is the latter he/she certainly didn't deserve any better, especially if they use to work for the government and held information the government didn't want known.

[fivecatsandadog]

Noting that anthrax mail stopped, I suspect the mailer had limited supply. That's about all I can guess.

Or they're busy mixing up a new batch.