All is not forgiven
(Book)

"In this first novel, the rookie Det. Kenda investigates a 1975 case that begins with the murder of a beloved Colorado philanthropist and society figure whose husband, a gambler and womanizer, appears to have an air-tight alibi. Mentored by his veteran partner Det. Lee Wilson, a former Nashville singer turned skilled investigator, Kenda's case quickly attracts attention from the FBI, CIA, and Interpol, for its similarity to a string of killings involving wealthy married women. All the murders appear to have been committed by a hired professional whose trademark is the use of an unusual form of lethal ammunition that leaves no trace. Detectives Kenda and Wilson travel across the country, following leads to Las Vegas and a mob made man,Goodreads.