Yahoo is doing a series on Kaczynski and his letters from prison. Lots of never before seen letters, some Z like handwriting, Z like words and phrases. He tells of a woman he fell in love with and discusses President Obama, Bin Laden, the internet and other things. I posted the info and links here: viewtopic.php?f=15&t=160
Found by http://www.zodiackillersite.com member up2something, from the newly released letters:
Zodiac Killer: . I wish you a happy Christmas.
Ted Kaczynski: I wish you a happy Easter.
Best regards, Ted
(Below there is large) Z