suspect mailed the package via fedex. >> reporter: we're actually here at a fedex location, we see a fbi computer analysis response team here just a short time ago, we saw investigators looking for fingerprints at that fedex store right there. now fedex has released a statement that as far as this investigation, fedex sent two packages, a source who briefed us on the investigation said that two packages, one of them ended up at the facility in san antonio exploded overnight. fedex would not specify what facility was -- we're told by sources that have been briefed on the investigation that police were planning to detonate that