Bessie Durham: South Carolina janitor found dead in department store restroom 4 days after she went missing.

Bessie Durham, 63, who worked as a janitor for KBS, a facility management company was found in the Belk Department Store bathroom, where surveillance footage showed her entering four days before her body was discovered.

Lexington County, South Carolina, Coroner Margaret Fisher told PEOPLE Durham died of natural causes.

Columbia City Police confirmed to The U.S Sun no foul play is suspected but friends and family have said there were a number of red flags that were missed as her body was not found sooner.

A spokesperson for Blek further confirmed to The U.S Sun that Durham “provided housekeeping services through her employer, an outside contractor company”.

“First and foremost, we send our deepest condolences to the family of Bessie Durham, who was found inside a family restroom at our Columbiana Center location,” the spokesperson said.

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“We are actively working to piece together what happened. Meanwhile, we have also made counselors available to associates seeking support”

The department store was inside a mall, where Durham reportedly cleaned all of the stores.

WIS reported the bathroom, as of Wednesday, was not open to the public and was marked as “out of order.”

KBS, the cleaning company, offered additional condolences in a statement to PEOPLE.

They confirmed they are cooperating with police, and are “providing assistance and services to our other team members.”

Durham’s son-in-law, Bobby Johnson posted on Facebook Thursday that his family asks prayers and privacy.