A former FBI agent told FOX Business that the person responsible for a string of bombings in Texas is using a more sophisticated tactical approach.
“The first couple of devices were different, and so we are seeing some kind of evolution in tactics,” former FBI special agent Bobby Chacon said.
With five bombs in 19 days, federal agents and police officials are now scrambling for answers in the increasingly desperate search for the serial bomber behind the ongoing attacks, which have appeared to move beyond Austin, Texas.
On Tuesday, a package that was mailed from Austin exploded at a FedEx facility in Schertz, Texas, just 20 miles outside of San Antonio.
The blast in Schertz comes after a day after authorities in Austin said the "serial bomber" used a trip wire possibly made with fishing line, injuring two people during Sunday night’s explosion.
The investigation involves more than 500 federal agents, including from the Federal Bureau of Investigation (FBI) and U.S. Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF). Texas Gov. Greg Abbott is offering a $115,000 reward for any information that will lead to the suspect or suspects.
“We have so many resources that are now devoted to this. We are going to find this bomber, and I believe we are going to find him soon,” Abbott said on Fox News’ “The Story.”
Chacon says the biggest obstacle law enforcement faces in apprehending the suspect is anonymity.
“A person that’s not confronting their victims. So the reach and the anonymity of which these attacks are carried out is probably the greatest obstacle,” he said.