Someone who has had no pity on the tears of mothers, the moans of children, the helplessness of old people, the sighs of fathers and the sorrow of brothers, does he deserve pity, pity or compassion ?

To show mercy to such people means to further encourage their criminal activities. If they are shown mercy, maybe another mother will lose her child, another sibling will cry and another father will breathe a sigh of sorrow. So death penalty is the appropriate punishment for them.