Thanks for all the work on the comparison to BK-but I would seriously reconsider contacting any relative, fwiw. At the minimum, if you are going to use WS as a catalyst for your sleuthing, I would ask a mod for their opinion. If the family comes to us looking for help, that is one thing. But incredible emotional harm can happen with this process. Yes, Andy's step brother re-opened his case. BUT, he likely can google his brother's name and will find the thread, or the detective CW has been working with can bring it up if he believes it is a viable lead. IIRC, the detective is not all that convinced-CW can speak to that.
JMO...