[sammyg2]

He was drunk. He drove off a bridge into a river. He got out and left the scene. She died in his car.

Now how exactly would that be considered an accident? If you did the exact same thing, you would be charged with 2nd degree murder at least.

As far as definitions, check out the definition of manslaughter (also known as 3rd degree murder). Where exactly in there does it mention the word "willful"?