There are two accounts in the book of Genesis detailing how the Israelites came to possess Shechem, which became the capital of the northern kingdom of Israel. Butchered or Bought? might have made for a more dramatic title to today’s contradiction.
The southern Yahwist account is telling. It reveals how the southern storytellers viewed their northern brethren. For according to this version, the founding of Shechem was achieved through a deceptive, brutal, and bloody affair (Gen 34). It recounts how Dinah gets raped by one of the Shechemites and how her brothers persuaded all the male Shechemites that they had to circumcise themselves in order to marry Dinah. After they had agreed to this gruesome cutting of their flesh, Simeon and Levi decide to butcher them all where they stand, win their sister back, and gain a city!
Of course the northerners told the story differently. It was after all a story about them. The Elohist professes, in opposition to J, that Jacob (i.e., Israel) bought the land from its inhabitants for a hundred qesita (Gen 33:19).