The three people found dead Saturday in a Capitol Heights, Md., apartment had been killed at least 24 hours earlier, police said.
Authorities are still searching for a suspect in the triple slaying.
A relative of one victim called 911 after finding the bodies around 5:30 p.m. Saturday at the Lexington Court Apartments in the 5200 block of Marlboro Pike.
All three victims had gunshot wounds. Police have ruled their deaths as homicides.
One victim, 38-year-old Ortiz Ola, lived in the apartment where the bodies were found. The other victims have been identified as 33-year-old Weldon Mason and 33-year-old Staci Taneesha White, both of Laurel.
Mason and White worked together at a Sam's Club in Laurel where Mason had just been named associate of the month. Ola and Mason were friends.
"We're trying to further establish whether the three of them all knew each other," Julie Parker with Prince George's County Police Department said.
Parker said it's still not clear when the victims were killed. Detectives are working to establish a timeline by talking to friends and family, she said.
Neighbors told News4's Derrick Ward they heard gunshots several days ago. However, police said they had not received any calls on shots fired in the neighborhood.
They also said there's no evidence to indicate that possible incident is related to the killings, reported News4's Pat Collins.
"It's hard when it's so close to home like that, my favorite nephew," said a woman who said she was an aunt of one of the victims. "But we're all holding on. We got each others' backs and we're holding on. That's all we can do."
Police have not given any suspect information, but have searched trash receptacles in the neighborhood and nearby wooded areas.
Authorities returned to the neighborhood Sunday to pass out flyers and speak to members of the community.
Stay with News4 and NBCWashington for more on this developing story.