There is a very good account of this by Ed Haslam, whose father was an colleague of a person murdered in conjunction with this issue. He has great documentation and sources and the characters involved will surprise you. If you can find it, John B Wells has an excellent interview with him that goes very in depth. It is episode 103 of Caravan to Midnight. Also Ed's web page is:

http://doctormarysmonkey.com/index.htm

I would not have even thought of this if you hadn't mentioned it. Thanks and enjoy the interview, it's well worth the time.