Police are looking to speak to an ex-employee of a NSW mother who was found dead in suspicious circumstances near her infant son in their NSW home.

Kristie Powell's body was found at her Bellambi property, in Wollongong's north, by a friend about 1.10am yesterday morning.

Today, NSW Police confirmed in a statement that initial inquiries into Ms Powell's death have led them to seek a man they believe may be able to assist them in the investigation.

Police investigating the suspicious death of NSW mum Kristie Powell have today named a man they are looking to speak to. (Supplied)

"Bhanu Kirkman, aged 29, is described as being of Indian/Sub-Continental appearance, approximately 180cm to 185cm tall, with a large build and black hair,” the statement said.

"Kirkman is known to frequent the Illawarra, Shoalhaven and Sydney areas.

Detective Inspector Brad Ainsworth told reporters they understand Mr Kirkman to have been an ex-employee of Ms Powell, who worked from her home as a dog sitter.

Detectives have identified 29-year-old Bhanu Kirkman as the person they believe can assist in their inquiries over Ms Powell's death. (Supplied)

In a series of disturbing Facebook posts prior to her death, Ms Powell revealed she had allegedly been stalked by a person she knew.

The mother, who worked from home as a dog sitter, revealed in a Facebook reply to a friend in March she had concerns about a man.

"He became obsessed with me and for some reason he is still obsessed," the 39-year-old wrote.

Police said in a statement Mr Kirkman is known to frequent the Illawarra, Shoalhaven and Sydney areas. (Supplied)

"He is mentally unwell and I have contacted police about him on a few occasions, but there is nothing they can really do as he is considered non-threatening."

In the Facebook message, Ms Powell said the man wrote her messages, sometimes up to a hundred a day, that say "Die Kristie Die". She also claimed he referred to himself as the "Reaper".

"(Mr Kirkman) resides in the Wollongong/Thirroul area. We believe he is someone that really will help us with our inquiries thus far," Det. Insp. Ainsworth told reporters today.

"We reviewed some Facebook images and some commentary there. Yes, there is some disturbing commentary there.

"We know he was an acquaintance of the deceased and we think he can maybe shed some light on where we're going (with the investigation)... A former employee - I don't know for how long.

"His commentary in general was probably very strong, very disturbing on facets of many things - not just pointed at the deceased. His overall commentary wasn't great."

Ms Powell was found dead in her Bellambi home, in Wollongong's north, this week near her uninjured five-month-old baby son. (Supplied)

Police have said they never received any formal complaint from Ms Powell about the alleged stalking, but did say Mr Kirkman is wanted on a warrant in light of some previous charges.

"He's had some minor dealings with police for resisting arrest and some drug-related possession," Det. Insp. Ainsworth said.

"He has carried a knife before. We would be asking members of the public, if they know where he is or they sight him, definitely call Triple Zero or ring Crime Stoppers."

The child was taken to hospital for checks and is now in the care of his grandparents. (Supplied)

Meanwhile, the brother of Ms Powell said there is "no justification" for his sister's death.

"We're not good," Ms Powell's brother, Ryan, said.

"We just had our sister taken from us and there's no reasoning behind that, doesn't matter what the circumstance is there's no justification in what this person has done."

"She was a single Mum, never put her hand out and asked for help, she was doing it her own way, and was doing a really good job of it.

"That's what we've got to remember and in a few years what we've got to try to explain to her son."

Yesterday detectives established a crime scene at Ms Powell's home, which is still active, with forensics teams examining the location.

"(Ms Powell) had a significant amount of blood on her and some injuries," Det. Insp. Ainsworth said.

"She's a 39-year-old lady, she lives alone there with a five-month-old son. The little boy was in the bedroom. He was uninjured and unharmed."

After the discovery of Ms Powell’s body, the baby was taken to hospital by emergency services and is now in the care of his grandparents.