Well, I think we something to jump start this inactive mystery (contrary to it being an "active, ongoing case") The Boston Globe and WBUR just did a recent series on the Gardner Heist. It was pretty successful and the team is looking to do another podcast series. I may pitch them the Joan Risch case, see if there is any interest?
The other thing I am thinking about is this - back in the day, when there were real crime reporters it seemed like they had key access to not only LE but records and documents that the average person could not get. You might say they knew jsut as much, if not more about the case than LE. When current investigators look up an old newspaper crime reporter for information on cold, unsolved cases their files usually are very informative. My point is, I saw an obituary where an old Boston Herald crime reporter passed away a few years ago. The obituary made it a point to say that at the time, he was very involved in the reporting on the Joan Risch case. In a local newspaper an accompanying article about the reporter was written by a local columnist who knew the old Herald reporter. When I saw his byline I recognized his name and we have a few mutual friends. I am wondering if I reach out to him would he be able to contact the family about the reporter's old files? As I write this I wonder what happens to and old crime reporter's files? Who owns them? They family may have even tossed them after his passing... Anyway, it is a bit of a long shot but I may try it.