Gerald Wallace scored 19 points, Jason Richardson added 18 and the Charlotte Bobcats continued the Miami Heat’s early season misery with a 91-76 victory on Tuesday night. Emeka Okafor had 13 points and 10 rebounds for the Bobcats, who dominated the punchless Heat. Playing again without Dwyane Wade, Miami often struggled to just get a shot off and dropped to 1-6.