Murder Was the Case
Felony hit and run is a crime in the United States of America where a person leaves the scene of a car accident after causing death or serious injury to a pedestrian or occupant of another vehicle. But it would only qualify as a crime if the offender was apprehended.
In this case, this person should probably have kept this secret to themself. There’s nothing fun or quirky about revealing that your mum caused a person’s death once upon a time.