Judge Neapolitano on Fox this morning said that the sniper's admonishments to keep his notes secret reminded him the Ted Kazinsky's brother contacted police because a letter published in a paper reminded him of his brother, who turned out to be the Unabomber.
Katherine Herridge on Foxsays the call was discounted by an FBI agent, who either didn't understand the significance or chose to ignore it.
Hmmm, that almost makes me change my mind (again) and police should release the note - photocopies of the handwriting and all.