I am way behind all you east coasters. But I will try to answer. I totally disagree about what my actions would be. If I found one set of family members dead, the LAST thing I would do is go look for more. I would be so completely freaked out, I would sit down and wait for the police. While I was waiting, I would probably call my husband or parents both to tell them and to get some consolation. But I would not ever, no way, no how, run into another home on the property. First, I wouldn't want to take the chance of seeing more dead bodies. I would know that they are most likely also dead because they HAD TO have heard what happened next door last night. And since Freddie and Hannah aren't sitting outside with me, and they didn't call the police, they most likely are also dead. I wouldn't want to see that. I also know that I would be contaminating a crime scene. I wouldn't want to do that. I would also fear that the killer could still be inside.
To me, it is an incredibly incriminating action to purposely enter a crime scene (or THREE). You are creating a reason for your DNA and trace evidence to be found in those homes.
Now, Bobby Jo might not be that smart. Is entirely possible that her actions are innocent. But to me, knowing what I know, they look incredibly suspicious.