Victims Stephanie Eason, 19, Adam Andrade, 18, and a male juvenile, all of Antioch, were robbed at the Slatten Ranch Shopping Center at 9:12 p.m. Sunday, Antioch police said.
The three were walking in the parking lot outside the shopping center's GameStop store, located at 5819 Lone Tree Way, when three male suspects approached them from behind, police said. Two of the suspects were armed, one possibly with a shotgun.
The suspects took cash from the victims before fleeing on foot. Police searched the area with K9 units, but the suspects were not found, police said.
The suspects were described as three Black males between 17 and 19 years old. All three were wearing hooded sweatshirts.