Kaczynski is serving eight life sentences without the possibility of parole at ADX Florence , a supermax prison in Florence , Colorado . When asked if he was afraid of losing his mind in prison , Kaczynski replied : In 2016 , it was reported that early on in his imprisonment Kaczynski had befriended Ramzi Yousef and Timothy McVeigh , the perpetrators of the 1993 World Trade Center bombing and the Oklahoma City bombing , respectively . The trio discussed religion and politics and formed a friendship which lasted until McVeigh 's execution in 2001
1993 World Trade Center bombing
1993 World Trade Center bombing
Ted Kaczynski