In the NKJV, according to Matthew, he “went and hanged himself”, while according to Acts, “falling headlong he burst open in the middle and all his entrails gushed out”. From the context it is clear that this happened at the field that he purchased, posthumously. For a successful hanging, there must be enough altitude so that when the end of the rope is reached the victim is still in the air. But to fall headlong there has to be a cliff, and you would have to dive off. Putting the two accounts together we may understand that there must have been a tree near the edge of the cliff, with a branch reaching out beyond the edge; Judas tied a cord around that branch and his neck and jumped—either the cord or the branch broke, and the impact was sufficient to split him open. Matthew states that it was actually the chief priests who bought the field, using the money that Judas had thrown on the temple floor; so Judas made the purchase posthumously.