Foreign nationals allegedly paid defendant thousands for aid in illegally obtaining student visas SANTA ANA, Calif. - A Korea-born pastor who owns and operates a religious school in Fullerton, Calif., is expected to make his initial appearance in federal court Wednesday to answer to charges that he used the school as a front for an elaborate student visa fraud scheme, going so far as to hand out phony diplomas and stage graduation ceremonies. Samuel Chai Cho Oh, 65, owner of California Union University (CUU), surrendered to U.S. Immigration and Customs Enforcement (ICE) agents Tuesday morning. Oh, who also serves as pastor of the Union Church housed on the CUU campus, is accused in a criminal complaint of conspiracy to commit visa fraud.