Jimmy Lee Dykes AUDIO: Recording From School Bus Abduction, PHOTO Of Bunker Released

05/31/2013 11:43 am ET

When Jimmy Lee Dykes boarded a school bus on Jan. 29, he told the driver he wasn't leaving without a child.

"I need two boys six to eight years old," Dykes said, in audio released to ABC News. "Six to eight years old. I mean it. Right now! Right now!"

The driver, Charles Poland, resisted in an attempt to save 5-year-old Ethan from abduction. The move cost Poland his life.

"It's my responsibility to keep these kids on the bus. I can't turn them over to somebody else," Poland is heard saying, moments before he was shot dead by Dykes.

That audio, as well as photos from the the bomb-rigged Alabama bunker where Dykes held Ethan captive for the next six days, were released exclusively to ABC News this week.

The photos reveal a tiny but well-stocked room, 12 feet deep and about eight feet long by six feet wide. There, Ethan was forced to learn how to detonate a bomb should Dykes be killed by police.

Dykes became more aggressive in the days leading up to Ethan's rescue. He made demands and spouted his political beliefs through a PVC pipe in the bunker, which turned out to contain a homemade bomb, the New York Daily News reported at the time.

Officials were able to insert a small, high-tech camera into the bunker and watch Dyke's movements. He was later killed during an exchange of gunfire with police, who raided the bunker using explosive devices.

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