Mahabharata: Evil-minded Duryodhana

                                                                  Q. In the Srimad Bhagavatam 1.7.36, Krishna reminds Arjuna: "A person who knows the principles of religion does not kill an enemy who is careless, intoxicated, insane, asleep, afraid or devoid of his chariot", thereby highlighting Ashwatthama's heinous crime. But during the Mahabharata war Krishna Himself advises Arjuna to kill Karna who was devoid of his chariot and not resisting. I find this contradictory and difficult to understand. Could you please clarify this matter?

                                                                  Q. Brhat-bhagavtamrta is BBT's latest publication. On p 414 there is indication that Karna and Duryodhana were 'partial incarnations of demons'. Could you supply the background to this statement? Was it due to the past life of Karna, or some other reason as to why he was destined to suffer so much, and do so many bad things? What wrong deeds had he done in his previous life or in his present life as Karna?

                                                                  There are three different angles to consider this from. The first is simply from a scriptural or textual point of view.