Seriously? Dude, I never even read half that stuff. The way it was reported was that he went beserk and executed her in a 'roid rage' homicide.
He got shot in the gut.
He shot her about 8 times.
Then he shot himself in the head.
There are two versions of the story.
1) He shot her, then the ex-marine shot himself in the gut (the most painful place to be shot), then in the head.
2) She shot him in the belly in a dispute (supported by many that they were having big fight that night), he shot her repeatedly. he then realized he was sitting there in a house full of drugs, a dead girl, and a bullet in his belly, and decided shooting himself sure beat going back to prison.
Keep in mind that the family of the poor girl is suing his estate... so if she DID shoot him first, they ain't getting a red cent.