A 30-year-old woman from La Habra fell to her death on Dec. 18 from the roof of a parking structure at West Hollywood Park.

The victim was with a group of friends who were returning to their vehicles at approximately 3 a.m., according to Sgt. Jeff Bishop, with the West Hollywood Sheriff’s Station. The woman climbed onto a railing and fell four stories to the ground.

The incident remains under investigation. Los Angeles County Coroner’s Office officials have ruled the death accidental. Coroner’s office spokesman Ed Winter identified the victim as Kelsey Ann Revilla.

Toxicology tests to determine whether Revilla was under the influence when she fell will take weeks, but it is believed that alcohol may have been a factor, Bishop said.