Unnatural History (Alex Delaware #38) by Jonathan Kellerman; 2023. Hardcover

On a superficially lovely morning a woman shows up for work with her usual enthusiasm. She's the newly hired personal assistant to a handsome, wealthy photographer and is ready to greet her boss with coffee and good cheer. Instead, she finds him slumped in bed, shot to death. The victim had recently received rave media attention for his latest project: images of homeless people in their personal 'dream' situations, elaborately costumed and enacting unfulfilled fantasies. There are some, however, who view the whole thing as nothing more than crass exploitation, citing token payments and the victim's avoidance of any long-term relationships with his subjects. Has disgruntlement blossomed into homicidal rage?"--