A Vineland resident has pleaded not guilty to charges that he shot a man to death at a Wawa in January. Shaqwil Marlow, 19,is accused of shooting Luis J. Rivera, Jr., 23, also of Vineland, multiple times as the victim walked out of the Wawa at Park Avenue and Delsea Drive in Vineland shortly before midnight on Jan. 13. Marlow was arrested nearly two weeks later in New York and returned to Cumberland County to face charges. A grand jury indicted him last month on four counts, including first-degree murder, two second-degree weapons possession offenses and third-degree criminal mischief for caus…