His American Detective - Victorian Gay Detective, #1

The sole survivor of his family's gruesome murder years earlier, "Poor Little Ned Lawton" has struggled to put the dark events behind him. So when a brash New York detective darkens his doorway demanding an interview, the wealthy young gentleman immediately shuts him out. But a rash of murders in America are mirroring of the London killings, and Patrick Kelly knows Ned might be the key to stopping the bloodshed.
Lawton, now called Edmund Sloan, is a wealthy young gentleman and philanthropist. He's spent most of his life pushing all memories of his old family and that horrific day from his thoughts. Now the provocative American detective insists he dredge up the past. Together, Patrick and the unwilling Edmund must uncover the truth of the murders before the killer strikes again, whether it is in New York or London.
As they hunt down secrets from his past, Edmund can't hide his other secret from the sharp-eyed detective: the attraction he feels for men and the enticing Patrick in particular.