LOS ANGELES -- The death certificate for the 15-year-old girl found dead in the trunk of singer D4vd's Tesla earlier this month reveals her cause of death still hasn't been determined. ABC News obtained the certificate on Monday.

Celeste Rivas Hernandez's cause of death remains listed as "deferred" -- just as it has been for weeks as the Los Angeles County Medical Examiner continues to try to determine cause and manner of death.

Sources tell ABC News that lab tests and toxicology reports will hopefully answer how she died. Until then, it remains a death investigation and not a homicide investigation.

The death certificate also notes that she was not and had not been pregnant in the last year.

The Los Angeles Police Department released the following statement on Monday:

"The Los Ang

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