Got a concept for a novel and wrote first chapter. Does it work?

Concept: A 73-year-old retired homicide detective with early onset dementia begins experiencing fragmented flashbacks to an on unsolved murder case and his deteriorating mind may be the only thing that can finally crack it.

First Chapter: https://drive.google.com/file/d/1AgSP0LTj0tDtKpSquZZrPUQYLKKyQYsJ/view?usp=sharing