It still baffles me, if the four are connected, that there are certain inconsistencies. JTP literally vanished without a trace, no phone, no car, no clues, and also the least amount of public info until recently. I believe it went a few days until the media picked up the missing persons report too.
However, the other 3 have multiple clues as to how this may have happened and who may have been involved. If CD is the suspect, how could he be so meticulous that one vanished without a trace, but the other 3 have a phone ping, a car on the property, license picked up on camera, rumors CD picked up the deceased, tried to sell a car, etc. If there are others, how could CD have done it without any clues either, and leaves so many clues in such a short period of time with DF, MS and TM?