I'm gonna go old-school with a modern writer: Michael Connelly's newest Bosch book, 'Desert Star'.
It reunites Harry Bosch with Renée Ballard to work a cold case unit, specifically the murder of an entire family.
Connelly is the king of the gritty, detailed police procedural. You feel the grind, the paperwork, the dead ends.
The investigation is a lesson in patience and obsession, with Bosch's iconic relentless drive at the center.
It's also a poignant look at legacy, aging, and what justice means when the system has moved on.
If you love seeing detectives piece together a puzzle from fragments everyone else has forgotten, this is pure catnip.
No fancy tricks, just masterful, character-driven detective work.