A police officer who fatally Tasered a 95-year-old with dementia symptoms could face a lengthy stint in jail after a jury found him guilty of her unlawful killing.

Senior Constable Kristian James Samuel White discharged his stun gun at Clare Nowland in a treatment room at Yallambee Lodge aged-care home in the southern NSW town of Cooma during the early hours of May 17, 2023.

In video footage played at his NSW Supreme Court trial, the 34-year-old officer was heard saying “nah, bugger it” before shooting the great-grandmother in the torso.

Kristian White (left) leaving the NSW Supreme Court in Sydney. White a police officer who fatally discharged a taser is accused of killing ninety five year old Clare Nowland in an aged care facility in Cooma in 2023..Sydney. November 20, 2024. Photo: Louise Kennerley
Kristian White (left) leaving the NSW Supreme Court in Sydney. (Louise Kennerley)
Clare Nowland, 95, passed away after she was tasered by a police officer.
Clare Nowland, 95, passed away after she was Tasered. (A Current Affair)

Mrs Nowland, who was holding a steak knife at the time, fell backwards and hit her head before dying a week later in hospital.

After hearing evidence and submissions over the eight-day trial, the 12-person jury returned with a guilty verdict of manslaughter on Wednesday.

They had been deliberating for 20 hours.

The NSW Supreme Court has released never-before-seen CCTV from the night NSW grand-grandmother Clare Nowland was Tasered.
The NSW Supreme Court released never-before-seen CCTV from the night NSW grand-grandmother Clare Nowland was Tasered. (Supplied)
A supplied image obtained on Wednesday, November 13, 2024, shows police evidence pictures of the taser Kristian White used to taser 95-year-old Clare Nowland at Yallambee Lodge on May 17, 2023. (AAP Image/Supplied by NSW Supreme Court)

Crown prosecutor Brett Hatfield SC successfully argued White was criminally negligent or conducted an unlawful and dangerous act by firing the Taser in a move which was “utterly unnecessary”.

In reaching its verdict, the jury rejected arguments by defence counsel Troy Edwards SC that the 34-year-old officer’s use of the Taser was a proportionate response to the threat that Mrs Nowland posed.