Vengeance for My Valentine - Five Seasons of Night, #1

"Your bullets can't kill me. I'm already dead. Inside and out."When his fiancée is brutally murdered on Valentine's Day, Ash Corvus is unwittingly plunged into the nightmarish world of the Arpadeem, or as the movies call them. Vampires. What begins as a personal quest for revenge becomes a struggle for the fate of the city itself as Ash's search takes him into Cedar Rapids' secret criminal underworld.
Ash must cast off his humanity and become a monster himself if he hopes to bring vengeance upon the monster who murdered his love. the man with the scar.