Two Little Boys (Ted Darling #3)
L.M. Krier

As more deaths follow, he realises he is up against powerful people who believe themselves to be above the law, and starts to feel out of his depth.
At the same time he has to cope with a new boss, much more formal than his old one, who increasingly makes him feel he's not up to the challenge.
It all starts to put an intolerable strain on Ted's long-term stable relationship with his partner, Trevor.