Brianna Marie Grier died at a hospital this week just after authorities claimed she fell out of a police car during her arrest earlier this month. According to new details released by Georgia’s Bureau of Investigation, Georgia deputies pulled off without closing the back door of their patrol car which led to Brianna’s fatal fall.

The state investigators were asked to examine the incident and found the back passenger side door was never closed. Deputies had arrested Brianna at her home on July 15th after she “kicked deputies, dared them to tase her, and said she wouldn’t go to jail before threatening to kill herself,” according to the police statement. Records following the incident also indicate Brianna Grier has had a history of mental illnesses.

Investigators say it appears the deputies forgot to shut the door after placing Brianna in the back seat and she was “handcuffed in the front of her body with no seatbelt,” citing body cam footage. There was also footage showing that at one point, Brianna Grier refused to get in the car and threatened to hurt herself.

“To put Grier in the patrol car, one of the deputies walked around and opened the rear passenger side door. The deputy quickly returned to the rear driver’s side door. Both deputies put Grier in the backseat of the patrol car. The deputies closed the rear driver’s side door.

The deputies left the scene and drove a short distance. Body camera footage reveals the deputies had no other contact with Grier from the time she was placed in the car until she fell out of the moving car.”

The Georgia Bureau of Investigation said.

The investigation remains ongoing.