DES MOINES ? The mother of a boy abducted 24 years ago said she’s bewildered by two photographs left at her front door, apparently showing her son and two other children bound and gagged.

The old photos appear to show 12-year-old Johnny Gosch with his mouth gagged and his hands and feet tied. The boy is wearing the same sweatpants Johnny was wearing when he disappeared while delivering newspapers on the morning of Sept. 5, 1982, his mother said.

“It’s like reliving it,” Noreen Gosch said Thursday night. “But the bigger picture is, ‘Why are they doing this?’

“Whoever had these photos had them for 24 years. I don’t understand why they would do this now. It must be some kind of message.”

Gosch believes her son was taken by child pornographers. She told authorities he briefly contacted her in 1997 but feared for his life and declined to give details about where he was.