In the US:
[What is Vehicular Manslaughter?

Drivers who unintentionally cause accidents that result in the deaths of passengers, occupants of other cars, or pedestrians may find themselves charged with the crime of vehicular manslaughter (also known as vehicular homicide). Vehicular manslaughter charges are appropriate when the driver was under the influence of drugs or alcohol, or driving recklessly (or merely carelessly), or otherwise driving in an illegal manner—each state specifies the circumstances that will support charging this crime. ][...]
http://www.criminaldefenselawyer.com/crime-penalties/federal/Vehicular-manslaughter.htm