I'll add the Dr. Coleman doc to my youtube queue - thanks for the reco. The youtube channel Cadaber (
https://www.youtube.com/@Cadaber) has various mysteries like disappearances and such and I have been listening to one of them (Mystery of David Glenn Lewis) - average but solid, the channel's podcasts might be worth a listen and these would seem to be from the "if you've got nothing better to listen to" bag.