WICHITA, Kan. (AP) — An autopsy has begun on a Kansas woman who died this weekend, days after she was sexually assaulted and set on fire in a park.

Sedgwick County spokeswoman Brittany Clampitt said Monday that coroner’s officials were investigating, but it wasn’t clear when the examination would be complete.

Relatives held a memorial for Letitia “Tish” Davis on Sunday evening in Wichita’s Fairmount Park, where she was found Nov. 14 with burns on more than half her body and cuts on her head.

Cornell McNeal has been jailed and charged with attempted murder and rape. He doesn’t yet have a lawyer. Police Lt. James Espinoza told The Wichita Eagle that charges would be amended after Davis died Saturday.

The district attorney’s office said prosecutors would determine appropriate charges based on new evidence.