Death of a Postman — John Creasey

An unassuming, quiet Post Office sorter is killed, and Inspector Roger 'Handsome' West, Scotland Yard's most down to earth and brilliant detective is called to investigate. What is the connection with a series of outrageous and bold daylight crimes that have taken place? This is an action packed story of tenacity, full of suspense in the face of difficulties which might well defeat a lesser detective.