and the fbi confirmed that five explosions and one other package that was intercepted by authorities today is connected to the serial bomber that has been terrorizing the austin area so far. chris, this all began back on march 2nd with an explosion that killed a 39-year-old man. since then there have been a series of explosions. the first three of them were packages that were left on people's door steps quietly overnight. one of them also killing a 17-year-old boy. now, on sunday the investigation took a twist when the package that exploded late sunday, it was triggered boyy a trip wire. that's what investigators are very concerned about, that the serial bomber appears to be taking different tactics. overnight near san antonio at a fedex facility, a package exploded there that initial dispatch call suggests was filled with nails. there was one worker that