Chilling details revealed after mum Kristie McBride dies following street brawl between two groups of teens

A murderous teenage girl appeared to be “normal” just hours after she fatally stabbed a mother during a street fight staged in an Instagram group chat.

Kristie McBride died after being stabbed multiple times during a fight between two groups of teenage girls following a planned shootout the night before.

The girl who delivered the fatal blow was among four people who pleaded guilty to manslaughter ahead of a murder trial in the NSW Supreme Court.

They cannot be named due to their age and are listed by the court as LT, DR, KT and TH.

The facts agreed and now released to the media reveal chilling details about the fight in south Sydney and the subsequent death of Ms McBride; including how the 15-year-old boy who stabbed his mother multiple times seemed “normal” afterwards.

The fight was planned the night before in a group chat called “The Big Yappers,” when KT told a girl from another group, including a relative of Kristie and her sister Carly McBride, to bring her sisters and tell them she was going to whip them all for talking “st” about her and her sister, the court document said.

The fight was planned in a group chat the night before, with KT telling a girl from the other group to bring her sisters and that she was going to whip them all for talking “st” about her and her sister, the court document said.

One teenager texted the group: “Bring you girls… I’ll beat you all up.”

DR, LT and KT received three knives from Coles on 22 November 2023 before meeting TH to catch a bus to the fight.

Ms. McBride and her sister, Carly, drank bourbon and coke throughout the afternoon before the street fight began around 6 p.m.

While Carly armed herself with a baseball bat, one of the teens grabbed the cat food cans and put them in the sock. Ms. McBride had an unknown object in her hand.

In the video showing the fight, KT is heard saying, “Oh, they got sticks, man.”

While Ms. McBride was running towards Carly and a group of teenagers, TH grabbed the knife in the process.

Documents state Ms McBride approached LT, then TH advanced towards the 39-year-old with a kitchen knife in hand.

TH plunged his knife into Ms McBride’s head, causing injury, before moving towards the street.

Ms McBride advanced towards the teenager, who stabbed her twice in the stomach.

The documents stated, “Young (TH) stabbed his knife into the deceased three times in total within a period of two seconds.”

Bleeding and clutching her wound, Ms McBride walked away from the street, at one point saying “that little ct” stabbed me”.

Another teenager, who recorded the fight, said: “They came with knives, you f—y c–ts…yeah run c–ts.”

After a police car was stopped shortly after the fight, KT, LT and DR were taken to a police station and charged with affray.

Meanwhile, TH went to a shopping mall with two other people and then asked the social worker to pick him up around 7 pm.

“I was shot in the head and my belongings were stolen,” TH said.

The social worker picked him up from McDonalds about an hour later, and the woman noted the teenager “seemed pretty normal, nothing out of the ordinary.”

The teen told him a fight broke out and he thought someone had been stabbed while driving.

TH was arrested the next morning.

Ms. McBride was taken to hospital, where she was placed in a coma and underwent emergency surgery.

Ms. McBride, who had two more surgeries in the days following the fight, was pronounced dead on the evening of December 1.

The autopsy ruled that Ms. McBride’s cause of death was stab wounds to the abdomen, which led to liver and kidney failure, among other conditions, and subsequent brain death.

The documents state that TH believed his actions were necessary to defend himself and his friends, but the stabbing “was not a reasonable response under the circumstances as he perceived it.”

According to court documents, KT, LT and DR are liable for involuntary manslaughter because they were “accomplices” in Ms. McBride’s death.

Because even though they had knives in their hands, they joined a joint criminal organization with TH and started a fight.

The three girls foresaw potentially serious harm but went ahead anyway, according to the documents.

However, KT, LT and DR did not act with the intent to kill or cause grievous bodily harm and did not foresee that others would do so.

Parts of the fight were recorded on video and are expected to be shown to the court at sentencing.

The matter will return to the Supreme Court on December 15.