From the Shadows by Parker Williams

The darkness is moving.

It stalks.
It hunts.
It kills.

Shay Nowak needs a job– he’s just no good at keeping one. His dream occupation would be to take care of a family—cooking, cleaning, caring for kids.
And then a voice in his head tells him where to go to make that dream come true.
Shay isn’t about to argue.
Diego Ramirez has wanted to die for the last three hundred years. Only one problem—vampires aren’t granted the luxury of a peaceful grave. Horrified by his past, Diego vows never to take human blood again.
Which is why he’s starving.

Then Shay walks into his life.
The darkness strikes, resulting in torture, blood draining, dismemberment — deaths in the hundreds.
Diego and his group need to stop the killings, but there’s a catch.
That past Diego is running from?
It’s about to step from the shadows.