A Calgary man with a long history of sexual assault involving children has admitted to running a brothel for pedophiles in Thailand.

John Wrenshall, 64, was sentenced in a New Jersey court and now faces 25 years in prison.

A U.S. investigation revealed Wrenshall ran a pedophilia business out of his Thai home since early 2000.

In December 2008, Wrenshall was arrested in London en route to Canada.

The former Calgary scout leader was convicted twice in Canada on sex-related charges involving young boys, including assaulting choir boys in Calgary.