COMMERCE — Three people were killed and eight were injured Monday when a van carrying members of two heavy metal bands careened off Interstate 85 and down an embankment in Jackson County, authorities said. The 15-passenger van was carrying 12 people from South Carolina toward Atlanta when it went off Interstate 85 at the exit ramp to Ga. Highway 98 at about 7 a.m. Monday, authorities said. Of those injured, six were listed in critical condition, according to Steve Nichols, Jackson County director of Emergency Services.