A 42-year-old guy I know was hit by a car and died of injuries.

The driver was a 19-year-old boy, and I know his father.
The car that was used, was buried after the accident and replaced by another car that had sustained injuries that would prove that it was the vehicle that was used. The reason was that the actual accident vehicle was unregistered.
The actual accident car was buried in their garden. And it was his father who had buried the car while the boy was at police interrogation.
