How Does Rebuttal Work?

If this was going to be the smoking gun to tie Ralph to the scene, it's kind of falling flat a little bit because of his brother's testimony. Also remember this could just be a red herring, right? It still could have been Ralph and the shoes are not his. If certain information comes out in the defense case, you may have heard of opening the door. You may put on a witness who opens the door to previously inadmissible evidence. That didn't really happen here. This was more, we've heard the evidence from the defense. Now we're going to put witnesses on to rebut it.