CHINA GROVE State records indicate Rowan County has a drug problem. This week, residents learned that it extends to one of its best schools. Four faculty members from Bostian Elementary were arrested Tuesday and accused of being part of a ring that illegally obtained thousands of doses of the painkiller hydrocodone. China Grove police and state investigators say family physician Orrin Walker unlawfully wrote hundreds of prescriptions that were filled by his wife, Abby, her co-workers and friends. Orrin Walker, 48, operated Main Street Family Practice. Abby Walker, 44, was a second-grade teacher at Bostian. Both were charged with trafficking...