After 4th Austin explosion, police warn of sophisticated ‘serial bomber’

  1. After 4th Austin explosion, police warn of sophisticated ‘serial bomber’  Chicago Tribune
  2. “He’s one step ahead”: Officials frustrated after latest Austin explosion  CBS News
  3. Austin explosions have hip city on edge as serial bomber on loose  NBCNews.com
  4. Allhands: What makes the Austin bombings so terrifying? It could happen to any of us  AZCentral.com
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