The man accused of killing eight people in Georgia in March pleaded not guilty to four counts of murder and other charges on Tuesday. Robert Aaron Long, 22, entered the plea through his attorney during a brief hearing in Fulton County. Prosecutors say Long shot dead eight people at three spas in the Atlanta area. Long already pleaded guilty to four of the killings. A judge in Cherokee County sentenced him to life in prison without the possibility of parole for the murders of Delaina Ashley Yaun, 33; Daoyou Feng, 44; Paul Andre Michels, 54; and Xiaojie Yan, 49. Long is charged in Fulton County with killing Hyun Jung Grant, 51; Yong Ae Yue, 63; Suncha Kim, 69; and Soon Chung Park, 74. Fulton County District Attorney Fani Willis, a Democrat, has said she will pursue the death penalty. “Last year, I told the voters of Fulton County that I could not …