Cross the Line (Alex Cross) - James Patterson

A killer with a twisted sense of justice has Washington DC under siege. Only Alex Cross can bring them down.

When a police officer is killed, Detective Alex Cross steps up to take command of his force who are scrambling for answers. As a brutal crime wave sweeps the region, an intriguing connection links these deadly scenes.

The victims are all criminals.

The murderer has appointed themselves as judge, jury, and executioner, and it's up to Alex to take the law back into his hands before the city descends into chaos.