UPDATE 10-Fifth Texas parcel bomb blast leaves U.S. investigators baffled
March 20, 2018 at 17:01 PM EDT
AUSTIN/SCHERTZ, Texas, March 20 (Reuters) - A package bomb blew up at a FedEx distribution center near San Antonio on Tuesday, the fifth in a series of attacks that have rocked Texas this month and left baffled investigators searching for what they suspect is a serial bomber.