Results from a toxicology test are still pending. The autopsy showed that the woman's trauma injuries came from her falling off her wheelchair.
Detectives initially investigated the death as a homicide.
The body was discovered around 5:45 a.m. by a passerby who was trying to catch a bus.
Anyone with information about the case was urged to call the /*Santa Ana Police Department*/at (714) 245-8400.
