BANGOR, Maine (AP) — A martial arts instructor who admitted producing and possessing child pornography, including images of him abusing two young boys, was sentenced Tuesday to 40 years in federal prison.

Robert Hoover, 35, of Augusta, was sentenced after offering an apology and telling the judge that he didn't deserve forgiveness from his victims or their families.

"I'm pretty much damned in this world and the next," Hoover said. "I want to say I'm sorry, but I don't think that word is going to show how really sorry I am. They have the right to hate me. I hate myself. I'm not going to ask for forgiveness. I don't deserve it."

The Kennebec Journal reported (http://bit.ly/14LFrZ0) that U.S. Judge John A. Woodcock Jr. told Hoover that he not merely violated the law but also violated the most basic moral code in society by preying upon young boys when they were vulnerable.

"It is hard for me to find words to describe your conduct in this case because your conduct is simply unspeakable," Woodcock said.

Hoover was owner of Koshowarrior's Martial Arts and the United Martial Arts academies in Lewiston, where he taught children as young as age 3, according to police.

One of Hoover's computer hard drives held images and videos of Hoover sexually abusing a boy between 2008 and 2011 and also had 12 images and a video of Hoover abusing a second young boy on April 4, 2012, according to court documents.

He pleaded guilty to the federal child pornography charges in February.

His attorney, Virginia Villa, asked for a 20-year sentence. "As bad as this offense is, it could have been a lot worse," Villa said Tuesday. She noted that the victims don't have memory of the abuse and that the images were not distributed over the Internet.

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Information from: Kennebec Journal, http://www.kjonline.com/