4th Blast In Austin Stokes Fears About Possible Serial Bomber

Follow KDKA-TV: Facebook | TwitterBy Madison Park, Holly Yan and Ed Lavandera, CNN
(CNN) — This time, the bomb could have maimed anyone walking though this quiet Austin neighborhood.
For the fourth time this month, a device exploded on residents in the Texas capital. What makes this blast especially terrifying is that it was left on the side of a residential road and may have been triggered by a tripwire, Austin Police Chief Brian Manley said.
The three previous bombs were stuffed inside p