A customer discovered the shooting victims at the Hustle Mart, located at Stantonsburg Road and N.C. Highway 121 in Farmville, around 10 p.m. Sunday evening.
The photos show one man wearing a hoodie with what appears to be a bandana covering his face. Another man has on a blue and white striped shirt and a baseball cap. Deputies said they were looking for three suspects.
One of the victims was declared dead at the store. The two others died later at the hospital.
The dead were identified as 26-year-old Nabil Nasser Saeed Al'mogannahi, 24-year-old Gaber Alawi, and 16-year-old Mokbel Mohamed Almujanhi. The teen - who was a student at nearby Farmville Central High School - was the store owner's son.
Store customers told ABC11 the victims didn't deserve to die.
"They was kind people, loving people, and they would always reach out a helping hand to help you. When you came to this store, it was just like you were family," said Mattie Harper.
A memorial of flowers and a teddy bear was building out in front of the store Monday.
Anyone with information that can help deputies find the killers is asked to call Pitt County Crime Stoppers at (252) 758-7777. A $10,000 reward is being offered for information leading to an arrest.