The only reason you would question swift justice is because of the extreme liberal, humanist culture you were indoctrinated in.
All around the world, if someone is killed in your family, immediate and extended family members will take the law into their own hands.
There is no reason for murderers, rapists, violent thief's to be treated like royalty, fed and housed on the tax payers dime in hopes of "rehabilitation".
No such thing exists.