A jury has retired to consider its verdict in the manslaughter trial of a Nambucca Heads grandmother accused of running over and killing her daughter and another woman during a street brawl in 2019.
Aboriginal and Torres Strait Islander readers are advised this story contains the names of people who have died.
Linda Britton pleaded not guilty to two charges of manslaughter and alternate charges of dangerous driving in the Coffs Harbour District Court.
Her daughter, 24-year-old Skye Luland, and 20-year-old Kazzandra Widders died in the car park outside the Nambucca Plaza after being hit by a vehicle driven by the accused.
Three of Ms Britton's grandchildren, who were inside the car, told the court several people hit the car with sticks, smashing a window and breaking their grandmother's arm as she tried to get inside the vehicle.
Coffs Harbour District Court heard the accused made a U-turn and drove over a grass-covered kerb in the direction of Ms Widders, who Ms Britton said was repeatedly punching Ms Luland.
Expert witnesses told the court the car likely became slightly airborne before landing on the two women, given they were stuck under the car for some time.
The jury heard Ms Widders died from "mechanical asphyxiation" because of the weight of the car on top of her.
'I think I just killed my daughter'
Defence barrister Ben Cochrane said Ms Britton did "what any mother or grandmother would do in that situation", and that she acted reasonably "in the circumstances as she perceived them".
The jury was told it would also have to consider the possibility that the accused's partner, David Luland, contributed to the deaths of the two women by attempting to drive the car off them while they were stuck underneath it.
But Crown prosecutor Jo Smith said the fact the accused admitted to driving her car at Ms Widders with the intention of "nudging" her off her daughter was an inherently dangerous act that "significantly or substantially" caused their deaths.
Ms Britton was not called as a witness during the trial, but the court was shown videos of police interviews in which she said the Widders family got "out of [a] car with bundi sticks".
"I thought that [Ms Widders] was going to kill [Ms Luland]," Ms Britton told police.
Several sticks were later found at the scene and photos of them were presented as evidence to the court.
Members of the Widders family called as witnesses denied seeing or using any sticks as weapons during the fighting.
A triple-0 call made by a nearby resident who was approached by a battered and bleeding Ms Britton was also played for the court.
A portion of the recording included the accused crying hysterically on the phone and saying "I think I just killed my daughter".
While summing up proceedings, Judge Johnathan Priestly warned the jury of the unreliability of some of the witnesses, including members of the Widders family, who he said may have had a "motive to lie" because of the "possibility of implicating themselves in illegal activity".
The court awaits a decision from the jury.
