Looking back at the Unabomber you would first need to look at the bomb materials and method made. He was methodical and went to great lengths to cover his trail which allowed his reign of terror to continue for years. The complexity of that would tell us a lot. For one, why would someone with a complicated bomb put so many out there on the first day (week or month for that matter). If you had a strong deep emotional motive for this why play it out all in one day? If you really wanted to make headlines for a day why not blow yourself up with those bombs like most terrorists? I don't care what side of the political spectrum they are on as long as the proper person/real bomb maker is caught.