Saddest part of the news coverage so far is how they announced what techniques the FBI employed to find him.
Cell phone triangulation in the hours before each bomb exploded recording tower pings, tracking via cell pings, video at the sites of drop off, etc., etc.
Next time, and there will be a next time, the cat and mouse game will be even harder because whomever decides to see this as a challenge to up this guys score and put the entire nation on alert will know exactly what measures to avoid being used.
Kaczynski was a psycho genius but was selective in his rampage, which ultimately is what led to his downfall. Had someone like him wanted to just randomly commit these attacks, to be honest, we would probably still be looking for him.
These same top secret case solving techniques are shown on shows like Blue Bloods, etc, every episode.
Nothing new to folks.
I believe it allowed the tracking of other phones were around the initial phone and then follow those devices monitoring which switched cell sites at the same time indicating those phones were moving together.
Rather a clever method of finding conspirators.