"We Are The Stonewall Girls," by Joseph S. Walker, in More Groovy Gumshoes: Private Eyes in the Psychedelic Sixties,, edited by Michael Bracken, Down and Out Books, 2023.
This is the eighth appearance in this space by Joseph S. Walker, which puts him near the top of the heap.
Narrator Neil Fell is a gay private eye in New York City in June 1969. That plus the title should tell you what the story is going to be about.
A wealthy man named Grierson comes to Fell with a problem. He is not gay but he has made friends with some of the young men in Christopher Park, the ones who call themselves queens. Now one of them, Alice, has disappeared and Grierson is worried about him. He has approached police and other private eyes but they assume he is interested for sexual reasons and are anything but helpful.
Fell takes on the case and, as you can imagine, winds up involved in the Stonewall Riots. I thought I knew that subject fairly well but I learned a lot of details.
The case is interesting as well, and the solution is satisfactory.