Justice isn't always black or white.
Sometimes it is cold and dark...
|Book #3 of the Cold Justice Series|
|Book #1 of the Cold Justice Series|
|Book #2 of the Cold Justice Series|
The Cold Justice Series features different leading characters from the FBI's BAU-4 (that deals with crimes against adults) and each book can be read as a standalone title although I'd recommend reading them in order because the backstory of the characters builds throughout the series.
The Book Nympho.