Austin bombings show ‘similarities,’ work of ‘serial bomber,’ police say – Fox

“We are clearly dealing with what we what we expect to be a serial bomber at this point, based on the similarities between now what is the fourth device,” he said.

Frederick Milanowski, the special agent in charge for the Bureau of Alcohol, Tobacco and Firearms, says the latest bomb was “more sophisticated” because it used a trip wire. Milanowski said trip wire devices, possibly using fishing line, are triggered by victims applying any kind of pressure or tension.

via Austin bombings show ‘similarities,’ work of ‘serial bomber,’ police say | Fox News