And in 329, they're following the trail of Darius. Darius eventually gets captured and killed by one of his satraps, someone by the name of Bessus. And Bessus, who's one of the satraps of Bactria, kills Darius and declares himself Artaxerxes V. He wants to be the Shah-in-Shah. Well, eventually, Alexander catches up with Bessus in 329. He's really angry that Bessus has killed Darius. He's also likely angry that Bessus is claiming that he is the Shah-in-Shah. And so he kills Bessus in fairly brutal form.