Raymond V. Martin

The Las Vegas Murders is the story of retired police detective Jake Fuller, and his search for the killers of four people in a murderous spree in Las Vegas. 
After twenty years of being a detective in New York, Jake Fuller decides to retire, move to Las Vegas, and start a simpler, more peaceful life. Four years later, a series of unexpected events changes his life drastically. He wakes up married to a much younger woman. Jake comes to think she will be good for him, however she has a shady past that causes her problems. She becomes one of four victims of killers terrorizing the city. Jake, however, will never let her case go unsolved... Jake becomes very involved with the realization there is a huge drug cartel working in Vegas. In addition there is a large contngent of mobsters meeting in Las Vegas at this time and Jake recognizes one of them as being wanted by the Federal authorities , the FBI so he develops a clever plan to capture all of them including those who have arrest warrants out on them, when the plan succeeds Jake and the local police are hailed in the local newspapers around the country.