C. J. Steinberg
According to the bio on Amazon: "C.J. Steinberg was born in Bosnia, 1990. During the Bosnian War, he emigrates to Germany with his mother. After completing his English studies, he moves across the globe working odd jobs, eventually setting into the editing profession for small prints and magazines. During that time, regardless of the challenges he faced, he never forgot about his writing dream. He thought it had come true in 2016, when he got a deal for his book, only to see his debut novel get lost in the publishing system. Years later, in 2020, he debuted on the indie scene with Honest Intentions, the first thriller in the Marcus Grimshaw series."