Theory - Bob was abducted by someone who knew him, who drove a vehicle, who stood to gain financially from his disappearance/death.*
1: Who were the small circle of people surrounding Bob?
PB, RB, JuM, JeM, AH, FH, BL, CL, PE (neighbour), ON (other neighbours with key).
2: Who may have had access to Bob's house?
JeM, JuM (ented when he was not there), ON (had keys).
3: Who had opportunity to be there the day Bob disappeared?
JeM, CL(were there).
4: Who had a motive (money per LE suggestion) AND has gained since Bob disappeared?
PB, RB, JeM, JuM, AH, FH.
5: Who stood to gain if Bob had NOT disappeared?
BL, CL (lost job), FH.
6: Who had a vehicle and could drive?
PB, RB, JuM, JeM, AH, BL, CL (?), PE.
7: Who knew for certain Bob was in his house that day?
JeM, CL, PB.
8: Who knew the area?
PB, RB, JuM, JeM, AH, BL, CL, PE, ON.
9: Who missed work after disappearance?
JeM.
10: Who missed commitment to family member/appointment after disappearance?
Jem.
11: Who left town?
AH, JeM ( if you count never returning to house).
12: Who showed no interest?
JeM.
13: Who showed intense interest?
Unknown.
14: Who turned to alcohol, drugs?
Unknown.
15: Who changed vehicle?
JuM.
16: Who Knew Bob's schedule?
JeM, JuM, AH, BL, CL.
Just have to add the scores up now. There will be one point for each time a set of initials appear in an answer, except for number 5 where a point will be DEDUCTED. Ratings will go from high to low. The ratings will be in another post, eventually. Just a warning that math is not my strong point so expect some mistakes!