There really isn't much else to say. This was a planned crime, hate and evil, murder and death. The poor victims and their families and friends should be prayed for right now. I'm sure we'll learn more, but on the spiritual side, we know all we need to know.
This comes of sinful men and women in a fallen world. This is where walking the pathway of sin will lead. This is where anger and hatred and wrath will eventually end up. Whatever happened, whatever the details, whatever we can point to - none of it should have ended with this. It makes you ill to the stomach to see the victims of such senseless violence.
Prayers for all those lost and hurting during this time. May God grant peace and strength to the hearts and souls of those left behind as he covers their hearts and minds in Christ Jesus.