Fourth explosion in Austin triggered by tripwire, shows `different level of skill,` police chief says
(LA Times Anaheim Ducks)

Austin´s police chief said Monday that the city´s fourth bombing this month, which injured two people, was caused by a device with a tripwire and showed `a different level of skill` than the package bombs used in the three prior attacks. Police Chief Brian Manley also told ABC`s `Good Morning America`...