Currently partway through Masquerade by O.O. Sangoyomi.
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Finished Shutter by Ramona Emerson (supernatural crime thriller) | bingo: minority author, orange, steppin' up
A Navajo crime scene photographer that can see ghosts is haunted by a victim seeking justice.
This ended up being more about how the MC's ghost-seeing and interest in photography impacted her childhood, rather than the thriller plot or other characters. Not terrible for a debut novel, but I don't think I'd recommend it. (Also, skip if you don't handle gore well: the crime scenes are described in vivid detail.)