The 22nd Posadas County Mystery, is a prequel to the prequel of the series, One Perfect Shot. It explores the younger Gastner, introduces Sheriff Eduardo Salcido, and traces the development of series stalwarts. When the first Posadas County mystery, Heartshot, published in 1991, Bill Gastner was the county Undersheriff. Over time Bill became Sheriff, then retired, and Robert Torrez took over the top spot. But what were Torrez's first days as a rookie...