An employee discovered the bodies of Marcus Alexander Robinson, 49, and Tammy Rosario, 29, inside Car Wash Express, at 5256 Front St.. Robinson owned the business, which supplies equipment to self-service car washes, and Rosario was an employee, authorities said.
The bodies have been sent to the state medical examiner's office in Chapel Hill for autopsy to determine the exact cause of death.
Investigators said they have questioned relatives in their search to find out more about what happened. Authorities said on Tuesday that there were no signs of a break-in, but that a glass door at the front of the building had been broken.
"Family members have been questioned. They've not been excused as possible witnesses (or named) as possible suspects," said Cumberland County Sheriff's Office spokeswoman Debbie Tanna. "As of right now, we have no suspects."
The pastor at Stedman Baptist Church, where Robinson's parents attend, told WRAL Wednesday that the family had recently suffered a lot of loss with the parents' grandson accidentally killing himself and their daughter dying of cancer.