@CNN: The devices used in the Austin and San Antonio-area explosions were pipe bombs with batteries and smokeless powder and were constructed with materials found in a hardware or sporting goods store, a law enforcement source says https://t.co/ObZ7Jhiwix

@CNN: The devices used in the Austin and San Antonio-area explosions were pipe bombs with batteries and smokeless powder and were constructed with materials found in a hardware or sporting goods store, a law enforcement source says https://t.co/ObZ7Jhiwix