I kill ... I wound ... I will make mine arrows drunk with blood, and my sword shall devour flesh. Deuteronomy 32:39-42
There aren't many killings in Deuteronomy. God slowly killed the Israelite army; killed some giants here and there; hardened a king's heart so he could kill all of his people; and slaughtered all the men, women, and children in sixty cities.
But most of Deuteronomy is about God's law; what to do with people who break it (kill them mostly); and what he'll do to those who refuse to obey it (smite them with hemorrhoids, madness, blindness, starvation, feed them to animals, have snakes bite them, rape their wives and force them to eat their children -- see 28:15-68 for the details).
Here is a list of the killings in Deuteronomy.
