Hell's Vengeance - Hell's Vengeance Series, #3

Revenge is a one-way ticket straight to Hell.For Ghost Hunter and retired Marine, Shane Ryan, every day is another battle. A never-ending struggle against bloodshed, violence, and supernatural evil. And although Shane and Detective Jacinta Perez emerged from their last fight victorious, the war goes on. Called once again to Detroit to investigate a string of suspicious suicides, Shane Ryan quickly confirms that all is not as it seems.
Something is cutting a bloody swatch through the criminal underworld of this urban wasteland. A sinister entity that targets criminals and forces them to take their own lives. To stop the trail of mayhem and bloodshed, Shane will have to confront the consequence of a past error in judgment-a ghost bent on ridding the world of all evil. One by one, it will send them all to the fiery pits of hell.And it promises Shane Ryan he will be joining them soon.