Hayward police late Monday said tests by the Alameda County coroner on the badly decomposed remains confirmed they were Le. Police declined to release any further information.
On Saturday, searchers discovered the remains off a dirt trail in a rugged Alameda County canyon. Police said cell phone signals from Le and a former school friend they suspect in her death had been received from the area.
The former friend, Giselle Esteban, knew Le in high school in San Diego. Esteban was arrested earlier this month and charged with murder.
Police said Le's family has been told of the discovery.
The Associated Press contributed to this report.