Somebody pointed me towards Josh Lanyon and boy, am I glad they did! Given that Josh is listed under LBTG and Gay Thriller / Romance on Amazon, I probably wouldn't have discovered these books by myself. I started reading Fatal Shadows without being aware that the protagonist and love interest are both male. Not that it made the slightest bit of difference - I finished the book within a day and a half, it was that awesome :) 
 The protagonist is Adrien English, mystery writer and owner of the Cloak and Dagger bookstore in LA. Adrien is a kick-ass, yet strangely vulnerable hero. An acquired heart condition makes it difficult for him to tolerate sudden physical or emotional stress. He doesn't let it hold him back but occasionally, his physical condition impacts on the plot. I love the way the author has handled this. Rather than dump a physical handicap on the hero as a means of making him more interesting, the heart condition is an integral part of the plot. 
 Adrien becomes the suspect in the murder of one of his oldest friends and employees. Jake Riordan, one of the detectives investigating the case, is bisexual but so far in the closet, he'd do pretty much anything to not be exposed. There is an immediate attraction between the two men which grows stronger throughout the book. Both men are struggling against it for different reasons. 
 What made the book so amazing to me is the wealth of supporting characters, from Adrien's overbearing mother to the members of a book writing group meeting at Cloak and Dagger. Add this to the cohesive plot, great characterisation, very cool dialogue and the at times lyrical descriptions, you have an exciting thriller with a great romance woven through, with a touch of 1940s noir storytelling.