Retribution (Were-Hunter, #7; Dark-Hunter, #19)

Harm no human...

A hired gunslinger, William Jessup Brady lived his life with one foot in the grave. He believed that every life had a price. Until the day when he finally found a reason to live. In one single act of brutal betrayal, he lost everything, including his life. Brought back by a Greek goddess to be one of her Dark-Hunters, he gave his immortal soul for vengeance and swore he'd spend eternity protecting the humans he'd once considered prey.

Orphaned as a toddler, Abigail Yager was taken in by a family of vampires and raised on one belief - Dark-Hunters are the evil who prey on both their people and mankind, and they must all be destroyed. While protecting her adoptive race, she has spent her life eliminating the Dark-Hunters and training for the day when she meeting the man who killed her family: Jess Brady.

A gun in the hand is worth two in the holster....