Duryodhana was at that time in a incapable state. His, this waist was broken. He could not move. And he lied that "I have brought the five heads of the Pāṇḍavas, my dear Duryodhana." "Oh, you have brought?" He was very glad. But he knew how to test it. But when he pressed the head, it immediately became collapsed. "Oh," he said, "this is not Pāṇḍavas head. It must be their sons' head." Then he admitted, "Yes." He became fainted that "You have killed all the hopes. I hoped that in our family at least five sons will... You have killed also." So in that lamentment he died.
So he was arrested. He was arrested by Arjuna, and he was to be killed. Kṛṣṇa ordered that "Kill him. He is not a brāhmaṇa. He is less than śūdra." So when he was arrested, then he was let loose by the request of Draupadī that "I am suffering for the death of my sons, and this rascal is the son of our Guru Mahārāja, Droṇācārya, who has done so much for us. If he dies also, then mother guru will be very much unhappy. So let him go away." So, being insulted, he threw atom bomb, brahmāstra. The brahmāstra is something like atomic weapon, nuclear weapon. It can go to the enemy wherever the enemy is. It doesn't matter. It will go and kill him. That is called brahmāstra. So the brahmāstra was... He knew that "The rest of the Kuru family is Parīkṣit, the son of Abhimanyu. He is in the womb of Uttarā. So let me kill him also. Then everything finished."