It's a HUGE win for him. Now he has the rest of his life to smugly grin over the power he has over the families, and the rest of us, in knowing his motive, plans, methods, etc. While the family has a good idea of who his intended target was, they'll never truly know, and will always wonder. BK is well aware of that, and probably enjoys the true power he has over the emotions of the victims families. All of us perpetually speculating, wondering, commenting, etc further feed his sense of power. Truly an evil person, and it's sad to see it triumph over good. This outcome is a runner up to his intended outcome of getting away with it, which I suspect deep down his knowledge of LE told him was probably not going to happen.