Cambroni Vendetta

This title was previously published as The Assassin's Dog by David George Clarke.
COSIMO GRAZIANO ROSSELLI. A Mafia assassin who prides himself on his humanity: his victims feel nothing as they die; they simply cease to exist.
When newly promoted Detective Sergeant Jennifer Cotton's close friend Detective Superintendent Trisha McVie disappears in mysterious circumstances, a huge search throughout the UK's East Midlands proves fruitless and frustrating.
Little does Jennifer realise that the person behind her friend's disappearance is far closer to home than she imagines.
Little does she realise that an elderly man she sees sitting with his placid pug dog in a pub in central Nottingham is the enigmatic assassin Cosimo Graziano Rosselli.
Little does she realise that Cosimo Graziano Rosselli is planning how and when to kill her.
"It will be instant, amore.
One moment she will be alive, the next her soul will be on its way to heaven while her body crumples to a lifeless shell."