The gruesome and vile murder took place on July 14 and could be seen on a horrific Instagram livestream, with the footage from the incident having since been viewed thousands of times on social media.
The pair have been identified locally as Amália and Amanda Alves, with the young women’s bodies sadly being found just hours later after they were killed on the side of a road behind a property complex in Pacajus, Brazil.
Amanda Alves has left behind a three-year-old daughter, whilst her twin sister Amália Alves had become a mum to a son who was only six-months-old.
A teen suspect in the case has been arrested on suspicion of the bloodbath and Mateus Abreu, only 17-years-old, is being questioned by cops.
Video footage captured the sisters’ harrowing final moments as they knelt next to each other on the dirty road.
Reports say the pair were forced to gather their hair up in a bun before Abreu allegedly took the gun to the back of their skulls and fired the fatal bullets.
He is then accused of blasting two more shots at one of the sisters before standing over the other victim and firing another four bullets at her limp body.
Although Brazilian officials are yet to reveal a specific motive for the street executions, local newspaper Jornal de Brasília reported that it was because the sisters knew “too much” about incidents involving local drug dealers.
Locals who lived in the area frantically rang the cops after the bodies were found in the same spot they’d been murdered.
Brazilian newspaper Diario do Noreste said in a report the teen suspect had seven prior arrests.
The charges included unlawful possession of a gun, theft and intentional bodily injury in 2020 and this year.
It comes just a month after a family of four was brutally murdered in the South American country.
Cops identified Lázaro Barbosa as a suspect in the grim case where a dad and his two sons, aged 15 and 21, were killed in their home before his wife was kidnapped and found dead three days later.
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Twin sisters, 18, shot dead in wicked execution streamed live on Instagram