Police arrested four people Wednesday afternoon on S.C. 544 in Conway, after seizing nearly 15 pounds of high-grade marijuana. The 15th Circuit Court Drug Enforcement Unit was investigating alleged marijuana trafficking in Conway, when one of their dogs made a positive identification of drugs on a vehicle. Thomas Covert, 23, of Conway; Catherine Marcellino, 24, of Conway; Alexander Ewald, 23 of Conway; and Sean Marshall were arrested in connection to the vehicle stop. The DEU said in a release that they found a semi-automatic handgun, almost 15 pounds of high-grade marijuana and an undetermined amount of cash. ...