He accordingly advanced to meet Demetrius at the frontier. Here, at an interview which he held with him, he thanked him for his kindness in coming to his aid, but said that his assistance would now not be required. Demetrius said that it was very well, and so prepared to return. Alexander, however, as Demetrius afterward alleged, did not intend to allow him to withdraw, but formed a plan to murder him at a supper to which he designed to invite him. Demetrius avoided the fate which was intended for him by going away unexpectedly from the supper before Alexander had time to execute his plan. Afterward, Demetrius invited Alexander to a supper. Alexander came unarmed and unprotected, in order to set his guest an example of unconcern, in hopes that Demetrius would come equally defenseless to a second entertainment which he had prepared for him the next day, and at which he intended to adopt such measures that his guest should not be able by any possibility to escape. Demetrius, however, did not wait for the second attempt, but ordered his servants to kill Alexander, and all who were with him, while they were at _his_ table. One of Alexander's men, when the attack was made upon them, said, as the soldiers of Demetrius were stabbing him, "You are too quick for us by just one day." The Macedonian troops, whom Alexander had brought with him to the frontier, when they heard of the murder of their king, expected that Demetrius would come upon them at once, with all his army, and cut them to pieces. But, instead of this, Demetrius sent them word that he did not intend them any harm, but wished, on the contrary, for an opportunity to explain and justify to them what he had done. He accordingly met them, and made a set harangue, in which he related the circumstances which led him to take the life of Alexander, and justified it as an act of self-defense. This discourse was received with great applause, and the Macedonian soldiers immediately hailed Demetrius king. How far there was any truth in the charge which Demetrius brought against Alexander of intending to kill him, it is, of course, impossible to say. There was no evidence of the fact, nor could there be any evidence but such as Demetrius might easily fabricate. It is the universal justification that is offered in every age by the perpetrators of political crimes, that they were compelled to perform themselves the deeds of violence and cruelty for which they are condemned, in order to anticipate and preclude the performance of similar deeds on the part of their enemies.