When Does a DUI Become Manslaughter or Murder in CA ?

When does a DUI become manslaughter or murder in CA ?  Perhaps many law-abiding would never dream of having to face criminal charges of murder or manslaughter but it happen it can happen to anyone including successful billionaires as in the case of John Goodman.  http://abcnews.go.com/US/polo-mogul-john-goodman-trial-2010-crash/story?id=26155116    When convicted of a first time DUI in California [...]