The first of these stories starts more with what he did, that he murdered his sons and took his own life. Then it goes in to details of what happened on that day. The second paints a picture of the boys not wanting to leave their cousins house to see their dad. It then goes into more details learned about a voicemail left just before Josh Powell killed himself and his two sons. The first one tells more about who he was and what had happened before while the second focuses on the new evidence that has been found. It doesn't seem to be dealing with competitors as much as it is following up on a developing story which there is only so much information on at a time.