Ferguson protests

A protester squirts lighter fluid on a police car as the car windows are shattered near the Ferguson Police Department after the announcement of the grand jury decision not to indict police Officer Darren Wilson in the fatal shooting of Michael Brown, an unarmed black 18-year-old, Monday, Nov. 24, 2014, in Ferguson, Mo.

(Charlie Riedel | AP)

Days before Ferguson, Missouri, lit up with protests following the grand jury's Monday decision not to indict Officer Darren Wilson in the shooting death of Michael Brown, one woman bought a gun to protect herself. That same gun ended up killing her, according to multiple reports.

Becca Campbell, 26, has been identified as the victim of a fatal shooting Friday night in downtown St. Louis.

Sources told CNN she was a passenger in a car driven by her unidentified boyfriend when they were involved in an auto accident. She appeared to have accidentally killed herself with a gun the couple bought to prepare for possible riots.

"We're ready for Ferguson," she allegedly said, according to Fox News. She jokingly waved a gun, sources said, causing her boyfriend to duck and accidentally rear-end another car.

The collision caused the gun to go off and she was fatally struck by a bullet in the head. CNN reports she was rushed to a hospital but died.

The New York Daily News reports local authorities are still investigating. Police are awaiting gun trace results, according to CNN, to corroborate the boyfriend's story.

On Monday, a grand jury decided against indicting Wilson, the white police officer who fatally shot Brown, an unarmed black 18-year-old, in August. Authorities say more than 80 people have been arrested in the St. Louis area since the decision sparked violent protests. Charges include burglary and trespassing.