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The former FBI official responsible for catching the "Unabomber" appeared on "Fox & Friends" Tuesday morning to share insight on the string of bombings that have rocked Texas.

Authorities said a device that exploded shortly after midnight on Tuesday at a FedEx facility in Schertz, Texas, is likely linked to four explosions in Austin earlier this month, the latest of which injured two people Sunday night after they crossed a trip wire possibly made with fishing line.

Terry Turchie, former deputy assistant director of the FBI's Counterterror Division, said if Tuesday's bombing is in fact linked to the other blasts, it's a "game-changer."

"A lot of those hundreds of agents are going to be out scouring the area. They're going to find out where that package was dropped into the FedEx mailstream. And that in itself will yield an awful lot of information, and hopefully the kind of information that will lead them to the bomber," Turchie explained.

He said it appears the bomber is growing increasingly more brazen and cocky, much like the "Unabomber," Ted Kaczynski, who he described as "one of the most arrogant and narcissistic people you'll ever see."

"And I would imagine this person is the same way," Turchie said, noting that anger and isolation are other traits common among serial bombers.

He said the Texas bomber's pattern of behavior is "pretty elevated," so authorities must keep ramping up the investigation.

"He's not going to stop until he's caught. So I think that they understand that they're in for both the short haul and the long haul. And it's a tough challenge."

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