How the hell would anyone know for sure what the hell happened? 
on the other board, they claimed to have proof. Hell, the quote "What the hell is wrong with these women" was said about Savell, for being with him. Dave was called scumbag and every other name in the book.
Why? Because the parents, who discovered the scene, assumed that is what happened?
Until we know the facts, the thread title "Dave shoots Amanda" is just plain wrong. Two people shot dead. That's the facts right now. Irresponsible reporting at its finest.