Subject
Murder Investigation
20
Missing persons
15
Homicide
14
Murder
11
Cold cases (Criminal investigation)
8
Police
8
Secrecy
8
Serial murder investigation
7
Family secrets
6
Missing persons Investigation
5
Women detectives
5
Bail bond agents
4
Criminal investigation
4
Journalists
4
Trenton (N.J.)
4
Women bounty hunters
4
Bounty hunters
3
Friendship
3
Government investigators
3
High school students
3
Man-woman relationships
3
Officials and employees
3
Poisoning
3
Policewomen
3
Revenge
3
Secret societies
3
Siblings
3
Artists
2
Assassins
2
Boarding schools
2
Community life
2
Death
2
Game wardens
2
Grandmothers
2
Hackers
2
Kidnapping
2
London (England)
2
London (England) History
2
Los Angeles (Calif.)
2
Murderers
2
New Hampshire
2
Organized crime
2
Paris (France)
2
Poisons
2
Police corruption
2
Private investigators
2
Psychologists
2
Reporters and reporting
2
Serial murderers
2
Sheriffs
2
more ...