DECATUR, Ga. (AP) — The parents of a 28-year-old Georgia woman who died after she fell from a moving patrol car following her arrest fought back tears Friday as they demanded answers in their daughter’s death.

Brianna Grier suffered significant injuries July 15 and died from those injuries on July 21 at an Atlanta hospital.

The Georgia Bureau of Investigation said this week that the deputies who put Grier in the back of a patrol car to take her to the Hancock County Sheriff’s Office failed to close the rear passenger-side door before driving away.

Grier’s parents and sister appeared at a news conference Friday with prominent civil rights attorney Ben Crump to demand answers.