Under our justice system you get just as much justice as you can afford. See the T. Cullen Davis case for a good example.
Further update on the case is here:
Family Files Wrongful Death Lawsuit in Coronado Mansion Death
http://www.nbcsandiego.com/news/local/Coronado-Mansion-Rebecca-Zahau-Wrongful-Death-Lawsuit-Murder-Suicide—215451261.html