I just have to believe that the jury will see both seth and kat as being knee deep in this horror.
I think any rational human being will see it that way but what does that mean for a verdict? I hope it means that they will feel since she is walking they must hold Seth fully accountable. That is what I would do. the fact that she is quilty and got the deal is separate from his guilt. I don't for a minute think she alone killed Lizzie.