After 4th Austin Explosion PD Says They’re Dealing With “Serial Bomber”

AUSTIN (CBSDFW.COM/AP) — Over the weekend Austin was rocked by the fourth bombing this month. Investigators believe the blast, that injured two people walking along the side of the road, was triggered by a tripwire.
During a Monday morning press conference Bureau of Alcohol, Tobacco and Firearms (ATF) Special Agent Frederick Milanowski explained, “Tripwire is a victim-actuated switch that literally uses some kind of wire and when there’s pressure put on that wire it activa