But several people have confirmed the names to the Herald.
Beverley is listed in public records as being retired and Nick as a part-time worker.
One source said this afternoon that police inquiries to date centrered around Beverley being killed by her son - who then took his own life.
The deaths have been referred to the Coroner.
Their family said they were not yet ready to speak about the deaths.
Police found the pair dead in separate rooms of the woman's home in Riccarton on Saturday night.
A relative had asked authorities to check on them after they were not able to make contact.
It is understood the bodies had been there for a number of days - possibly weeks.
Detective Senior Sergeant Colin Baillie would not be drawn on the circumstances but did confirm a homicide investigation has been launched following the discovery of the bodies.
"Specialist police teams and ESR are still carrying out a scene investigation at the address and expect it to be completed soon," he said.
"No one else is being sought in relation to the incident.
"Our thoughts are with the wider family and they are being supported by Victim Support."
A spokesperson for the Coroner'a office said no. Ffurther details about the victims' cause of death could be provided at this stage.
Their bodies were removed from the scene on Sunday night and post mortem examinations were carried out to ascertain their cause and time of death.
Police investigators remain at the scene, on the corner of Mona Vale Ave and Ayr Street.
When police arrived at the overgrown and ivy-covered property on Saturday uncollected mail was pouring out of the letterbox.
A moss-covered car was parked in the driveway - the concrete entirely engulfed by grass and weeds.
Google Street View images show the same car in position in 2019.
The curtains in the house were mostly drawn shut.
Since Sunday specialist police including forensic teams are at the scene and investigators are speaking to neighbours and those close to the victims as they try to piece together what happened in the house.
Residents said they had not seen the occupants of the house for some time.
But nothing seemed amiss at the house - which is generally overgrown and assumed by some people to be "abandoned" due to the lack of maintenance.
"I always thought this house was abandoned but had seen upstairs windows open a few times over the summer," said one woman.
A man who knew Beverley and owns a share in the house as a trustee said he had not spoken to her since September.
He had not heard what had happened to the pair but thought it as "very sad".
"I thought it was quite nice that he lived with her so she had the company," he told the Herald.
Beverley purchased the Ayr St property before the 2011 earthquake.
The man could not recall exactly when she moved but said the house was damaged in the quake.
"I don't know what's happened... obviously something's gone wrong," he said.
Canterbury District Commander Superintendent John Price said the "very sad set of circumstances" was a timely reminder for people to look out for each other.
"As a society, we need to be connecting more with each other," he said.
"I ask people to actually take the time to check on your neighbours."
He said that in most urban communities people had no idea who their neighbours were.
"It's our purpose to ensure everyone is ok - get to know people, take the time to have that connection with people," he said.
"When people move in next door, introduce yourself, get to know who they are."
Price said things like overgrown gardens and overflowing mailboxes were "a red flag" that something may not be right at a property.
He encouraged people to - if they noticed something amiss at their neighbour's houses - to go and knock on the door.
"And, as families, we have to look after other family members," he said.
"It's really important that families remain connected."
