It is of no surprise that the bomber might try a mail bomb.. but I guess, we should discard all truth to get along... I doubt if FedEx was in particular the target, sounds like a far reaching theory, if one can speak up for the truth. Especially, since, they have one of the packages, that is if one can actually rely on news stories.
Saw an infowars story referring to some tv show on Ted Kaczynski, the Unibomber and whether, it might have been an influence... sorry hollywood to mention you.