Brian L. Porter 
All Saints [EPUB ebook] 

After the discovery of two bodies, Detective Inspector Andy Ross and Detective Sergeant Izzie Drake must lead their team in a race against time to prevent further atrocities.
Clues point towards the enigmatic priest, Father Gerald Byrne, who has recently returned to the city of his birth.
But what connects Byrne to the graveyard murders, a young girl’s suicide, and a former mental asylum?