'Oh well, she dead now': Four girls aged 12 to 14 who were arrested for stabbing a 15-year-old to death in Walmart bragged about it on social media after fleeing

A group of four girls who were arrested in the fatal stabbing of a 15-year-old girl in a Louisiana Walmart bragged about it on social media after fleeing the store, saying: 'Oh well, she dead now'.

The 15-year-old girl died in hospital from the injuries she sustained in the attack that was streamed live on social media at the Lake Charles Walmart on Saturday night. 

One of the girls, aged 13, was eventually tracked down by police and taken into custody on a charge of second-degree murder. 

Three other girls, aged 12, 13 and 14, were arrested on charges of being principals to second-degree murder. 

Footage has since emerged of the girls bragging about the alleged killing on social media after fleeing the store.

A group of four girls who were arrested in the fatal stabbing of a 15-year-old girl in a Louisiana Walmart on Saturday bragged about it on social media after fleeing the store

'I don't give f**k. If she killed her, she killed her. Oh f***ing well. She dead now,' one of the girls says in the video. 

The video was posted while police were searching for the group of teens.   

In a bid to track them down, police had released a surveillance image of the 13-year-old stabbing suspect as she fled the Walmart.

The girls had allegedly used a knife they had stolen from the store in the fatal attack and were spotted in a kitchen aisle just moments earlier. 

Footage of the stabbing, which was also posted on social media, showed the suspect armed with what appeared to be a knife as the victim approached and lunged at her.  

Videos showed the group of girls fleeing the store in a getaway car as one of them screamed: 'Just stabbed somebody at Walmart'.

'We just stabbed that b***h in her heart. We don't give a f**k.' 

Authorities have not yet confirmed who was driving the car.  

Police initially named the 13-year-old wanted over the stabbing in a Facebook post when they were trying to track her down. The other three girls were not named. 

Four girls aged 12 to 14 who have been arrested over the fatal stabbing of a 15-year-old girl during a fight inside a Louisiana Walmart. Footage of the stabbing showed one girl armed with what appeared to be a knife as the victim approached and lunged at her

The girls allegedly used a knife they had stolen from the store in the fatal attack. Police confirmed that investigators have footage of the stabbing that the alleged attackers posted on Facebook and Instagram live

The victim's identity has not been publicly released.

Authorities have also not revealed a motive for the attack but police believe the confrontation may have started at a nearby movie theater.  

Calcasieu Parish Sheriff Tony Mancuso confirmed that investigators have videos of the fatal stabbing that the alleged attackers posted on Facebook and Instagram live. 

'They stole knives from the actual store where they were at. It is really heart-breaking when we have to come in and pick up the pieces because so many families are damaged after this,' Mancuso said during a press conference. 

'Our whole case unfolded before us through live Facebook and Instagram... we have videos of everything that took place and it's very disturbing.  

'The whole murder was played out on (social media) so, again, there appeared to be no remorse. It was very cold to see 12, 13, 14 and 15-year-olds acting this way and we as a society can't tolerate it. We cannot let this plague and take over our community.' 

The sheriff issued a plea for parents to 'take control' and said it was problem of 'kids having access to weapons'. 

'This is the third homicide in six months that we've had that involved juveniles that range from 11 to 16 years old. They come from all backgrounds, all races. This is just a problem that we are having with kids having access to weapons,' he said. 

'This is not something we can police ourselves out o... I just don't feel like this is a police matter. This is a parenting issue.' 

Authorities later released a surveillance image of that girl, who is one of the 13-year-olds, as she fled the store in a bid to track her down after the stabbing

Authorities have also not revealed a motive for the Walmart stabbing but police believe the confrontation may have started at a nearby movie theater