HOUGHTON — The preliminary hearings for two Ohio residents suspected of participating in a credit card scam in Houghton County were adjourned for two weeks Monday to allow the defense in both cases to review items found during discovery.  Shiym Edwards, 28, and Destiny Johnson, 25, both of Akron, face felony charges of illegal use of a financial transaction device. The two are allegedly part of a large-scale operation based in Akron in which stolen credit cards were used to buy lottery tickets and other items.  Preliminary hearings for both were rescheduled for Dec. 16. ...