A pedophile and child pornographer described as a pariah in the community will serve another 22 months in prison after being declared a long-term offender in B.C. Supreme Court on Wednesday.

Justice Robert Powers sentenced David Caza to a total of seven years in prison for possessing and distributing child pornography. He was convicted of those offences in May after a lengthy trial and in the face of overwhelming evidence.

"He appears to have no interest in treatment," Powers said in rendering his decision. "He has a lack of remorse and no insight into the impact on his victims. There's possibly no hope of rehabilitation for Mr. Caza at this point."

Caza has been in custody since his arrest two years ago at his Columbia Street apartment where, as a convicted pedophile on strict parole conditions, he amassed a vast collection of child porn and distributed it via online networks. Since that was prior to the elimination of double credit for time served, he has less than a year remaining to serve.

Citing a plethora of case law, including decisions this year, Powers noted that children exploited by pornographers are re-victimized with each click of a mouse. Their images remain forever in the public domain. Some of the images police investigators found were particularly troubling and disturbing, he noted.

"It was obvious he spent a lot of time putting it together and trading it."

The judge said he could not accept a defence argument that Caza was put in the way of temptation, since he was placed in the apartment building across from a school play field, a building where he had Internet access. A probation officer initially rejected the placement.

"Mr. Caza wasn't interested in treatment," Powers said. "He was interested in child pornography. This just made it easier for him."

Powers said a sentence in the longer range was appropriate because Caza is unapologetic and unrepentant. The sentence should meet the principles of deterrence to Caza, general deterrence to others, denunciation of the offences and protection of the public, he said.

The judge also imposed a DNA order and banned Caza for life from public places where children could be present, any employment or volunteer position where he might come in contact with anyone under age 16 and use of a computer for contacting anyone under 16. He will also be registered as a sex offender for the rest of his life.

While the judge can make recommendations, it remains for a Corrections Canada parole board to set the conditions of Caza's long-term offender status. As such, he may be subject to supervision for up to 10 years after release from prison.

Crown prosecutor Bernie Caffaro requested a sealing order for the mass of evidence entered in the trial. The intent is to prevent the possibility of further distribution in order to protect the children and third parties, he said.