Do you think it ENDS for them when they die?
Do you think the soul of a mass shooter is free from all Karmic debt after an atrocity like this?
NO. They are FORCED to LOOK upon what they caused, feel the pain of all the victims and pay in restitution by coming down to EARTH and being a victim themselves.
AT LEAST a few thousand times until they get it.
Or maybe even ONE good life where they come back and watch as their family and friends are decimated right in front of them. God has plans too.