Lastnight. The 5th Jack Nightingale Supernatural Thriller

A killer is murdering Goths with relish - skinning and butchering them. The cops aren't getting anywhere so Jack Nightingale's nemesis, Superintendent Chalmers, asks him for help. Nightingale discovers that the murdered Goths had one thing in common: a tattoo connected to the secretive Satanic child-sacrificing cult called the Order of Nine Angles. As Nightingale closes in on the killers, the tables are turned and he finds himself in the firing line, along with his friends and family.
The Order will stop at nothing to protect their secrets and Nightingale realises that there is nothing he can do to protect himself. Nor can he run, for the Order has connections across the world. It leaves him with only one way to stop the carnage - and that's to take his own life .