Conversation so far:
What was the anthrax hoax about?
On October 12, 2001, Miller opened an anthrax hoax letter mailed to her New York Times office.
Who was the letter mailed from?
the government's investigation of these mailings focused on Bruce Ivins, who later committed suicide, with the investigation determining that Ivins acted alone.

Question: Why was the letter mailed to Miller ?
Self-contained rewrite: Why was the anthrax letter mailed to Judith Miller?