mr. despain. >> reporter: detective brooks sat down with jack in an interrogation room and watched the man fall apart. >> i can't. >> reporter: was this true grief the detective was witnessing? or regret? or guilt over something jack had done? or hadn't done. >> reporter: too late. what did he mean? jack didn't shy away from discussing those abuse allegations. here's how it happened, he said. >> she had taken some nude photos of herself and sent them to her boyfriends. >> reporter: jack said he found out the girl was sexting, confronted her, said he was going to tell her parents. but she got to them before he did, jack said, and invented the story to get out of trouble. >> so they took her side, i guess. was the bad person. >> reporter: jack told us the same story, eager, he said, to finally set the record straight. you didn't ever ask her to take pictures of herself and give them to you? >> no, no. >> reporter: but the accusation, said jack, almost destroyed him. >> i was at home. i could have op

mr. despain. >> reporter: detective brooks sat down with jack in an interrogation room and watched the man fall apart. >> i can't. >> reporter: was this true grief the detective was witnessing? or regret? or guilt over something jack had done? or hadn't done. >> i was too late. >> reporter: too late. what did he mean? jack didn't shy away from discussing those abuse allegations. here's how it happened, he said. >> she had taken some nude photos of herself and sent them to her boyfriends. >> reporter: jack said he found out the girl was sexting, cocoronted her, said he was going to telelher parents. but she got to them before he story to get out of trouble. >> so they took her side, i guess. they took her side and said i was the bad person. >> reporter: jack told us the same story, eager, he said, to finally set the record straight. you didn't ever ask her to take pictures of herself and give them to you? >> no, no. >> reporter: but the accusation, said jack, almost destroyed him. >> i was at home.