2000s movie police officer wife also police officer dormant cancer

Two veteran New York City detectives work to identify the possible connection between a recent murder and a case they believe they solved years ago; is there a serial killer on the loose, and did they perhaps put the wrong person behind bars?

A policewoman unwittingly puts her family in danger when she uncovers corruption in her department.

To protect his former partner's widow, a veteran cop teams up with an android to keep her safe.