AUSTIN, Tx. — Police now say incendiary device, not package bomb, exploded at Austin Goodwill store and wasn't related to prior bombings.
Earlier, police said authorities responded to a possible sixth explosion in south Austin at a Goodwill store that left one person injured.
Earlier Tuesday investigators linked a fifth bomb blast early Tuesday at a FedEx ground delivery facility northeast of San Antonio to the deadly package bombs in Austin.
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FBI says suspicious package at FedEx shipping center near Austin airport "contained explosive device."