Jackson, 20, accused of slaughtering her teenage ex-girlfriend, posted a photo of herself posing at the V&A Waterfront, holding a Mr Price shopping bag.
She captioned it: “SLAYING THROUGH LOCKDOWN.”
The post was met by outrage from members of the public, who asked why she was not adhering to lockdown regulations.
The post was shared by Shameemah Naaim Dollie who wrote: “Yep, with a small Mr Price sakkie, babes whole life is supposed to be on lockdown. Talk bout killers roaming our streets freely.(sic)”
Jean Williams Andries wrote: “We saw her at Pride this year.”
While Jacomine Leornard wrote: “Maar so mag mens nie rook nie maar misdadigers word vrygelaat, MXM, die land is a f**en joke.”
Jackson’s trial was expected to start in April, but due to lockdown restrictions, it was postponed to June 26.
Five witnesses are expected to testify against Jackson, who has yet to plead to the charge of murder of Nadine Esterhuizen, 18.
Nadine’s ouma, Sylvia Willie, 71, said they saw Jackson’s post and are devastated by her blatant defiance: “Nadine’s one cousin has to see a psychologist and she (Jackson) is shopping at the Waterfront.
“This is a joke because we as family are unable to move on with our lives, but she is continuing her life.”
Amongst the state’s witnesses is a police officer who had been first on scene and found Nadine’s body inside her sister’s rented home in Colorado Park in September 2017.
Jackson, 23, was found inside a locked bathroom, in possession of two knives.
She claimed she had acted in self-defence.
Nadine was stabbed about 21 times, while her neck was severed by a blade.
In December, Jackson made a bid for a plea agreement, but this was rejected by the State.
She is currently out on R5000 bail.
Nadine, who was in matric at the time of her murder, had obtained a protection order against Jackson and had opened a case of assault after Jackson allegedly attacked her at Strandfontein Pavilion in July 2017.