This year's Shamus Award for Best Short Story went to Louisiana author O'Neil De Noux for his tale "Sac-a-Lait Man," from EQMM's September/October 2019 issue. The author also won the 2017 Shamus Award and has won a Derringer Award for Best Novelette. De Noux is the author of over thirty novels. The sixth book in the Lucien Caye series, to which this story belongs, is forthcoming.
http://www.oneildenoux.com