A young woman died from a cardiac arrest moments after watching a man being gunned down in front of her.
Horror footage shows how the handgun-wielding killer burst into an off-licence with a helmet covering his face.
He could be seen grabbing Kamylle Queiroz as he fired at his victim at point-blank range.
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After firing multiple shots at Ênio Emerenciano da Silva, he ran outside and fled on a motorcycle.
Ênio, 29, was still alive when first responders arrived on the scene in Quirinópolis, south west of Brasilia, Brazil.
He was taken to a local hospital but died en route, as reported on Need To Know.
Kamylle, 18, was startled by the gunshots and an object struck her in the chest during the confusion.
She went into cardiac arrest as bystanders took her to a local A&E, where medics tried to revive her.
Despite their best efforts, they were unable to save her life.
According to cardiologist Maurício Lopes, it was unlikely that the psychological shock alone killed her.
He told local media that she may have had an undiagnosed heart condition.
But he added: “Her death could have been caused by the trauma from the object that hit her chest.
“But this can only be confirmed by an autopsy.”
Ênio had gone to the off-licence to buy beers.
He had spotted the gunman at the last minute and had tried to run away but in vain.
The police still haven’t managed to identify or arrest the suspect, but they believe they know his motive.
According to detective Thiago Latorre, Ênio was likely killed due to a territorial dispute between drug dealers.
He had been released from prison not long before his demise.
His killer’s degree of responsibility for Kamylle’s death is still to be determined.
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