A 17-year-old shot by his aunt died on Friday, bringing the death toll from a weekend massacre outside Greensboro to six, including the shooter, authorities said.
Richard Brian Suttles, who had been shot on Sunday along with four other minors and one adult by Mary Ann Holder, died shortly before 1 p.m. Friday, Guilford County Sheriff BJ Barnes said.
Along with Suttles, Holder killed her two sons, eight-year-old niece, and the 15-year-old girlfriend of one of her sons before killing herself. She also shot her married lover in the shoulder, and police say he's expected to recover.
The 36-year-old woman had been having an affair with Randall Lamb, 40, for almost four years, but it was coming to an end after months of bitter accusations between Holder, Lamb and Lamb's wife, including allegations of stalking and harassment.
Holder shot Lamb Sunday morning at a community college parking lot, and then drove away to pick up her son, 14-year-old Zachary Smith. Within a half-hour, a sheriff's deputy found Holder dead inside her SUV with a gun in her lap and her son mortally wounded in the back seat.
Police went to her home in the Pleasant Grove community south of Greensboro and found her son, 17-year-old Robert Dylan Smith, dead. Suttles, 15-year-old Makayla Leigh Woods and Holder's niece, 8-year-old Hannaleigh Suttles, were all suffering from wounds that would prove to be fatal. Hannaleigh died on Monday, followed by Zachary Smith a day later and Woods on Wednesday.
The victims at Holder's home appeared to have been shot while they slept in a bedroom and the living room, according to Barnes' chief deputy, Col. Randy Powers.
Holder left two notes taking responsibility for the killings. Police are continuing to investigate the case.