Raleigh, N.C. — Investigators continued their search for leads in the death of a woman found inside a Raleigh convenience store Thursday morning.

Police set up a traffic checkpoint along Trawick Road near the Trade Wilco convenience store, where the victim, Stephanie Powell Anderson, 39, worked as a manager.

Specifically, they are looking to talk to people who were in the area any time between 4 a.m. and 6 a.m.

"The investigation is making progress, but I would continue to stress that we need to hear from people if they have information that would help," Raleigh police spokesman Jim Sughrue said.

Anyone with information about the shooting is asked to call the Raleigh Police Department’s Detective Division at 919-890-3555 or Crime Stoppers at 919-226-CRIME.

Sughrue said it was still early in the investigation to comment on the specifics of the case but said the checkpoint "was helpful."

"People certainly want to know what happened out there," Sughrue said. "But it simply would not be in the best interest of the investigation to divulge too much information right now."

Family members said Anderson opened the store each day at 4:30 a.m. and that her boyfriend found her slumped behind the counter. They said she had been shot.

Police responded to a "hold-up" alarm at 5:01 a.m., authorities said. Officers arrived at 5:07 a.m.