Go back to the beginning, there are so many places to start. Work on your opening paragraph.

The phone rings, it is after midnight, I reach for the rotary phone on the nightstand next to my bed, my wife rolls over and moans. By now my children have been conditioned that when the phone rings in the middle of the night, someone is likely dead in the Saginaw County. But this is not where I want my story to begin; it started long before the Bridgeport Crime Lab called me away in the middle of the night to process a crime scene.