The Riverman by Alex Gray

When Duncan Forbe's body is pulled from the River Clyde in Glasgow, DCI William Latimer is called in to investigate.  Forbes had been at a going away party for another member of his accounting firm and everyone's first thought was that he had overindulged and fallen in.  But when drugs are found in his system, it becomes clear that this was no accident.

As Lorimer and his team interrogate the other members of the firm, they pick up an uneasiness and reluctance to talk.  When the man the party was given for is reported found dead in America where his new job was to be, suspicions rise higher.  When a flirtatious member of the HR Department is found dead in her apartment, it is crystal clear that the accounting firm has big secrets that are also dangerous.

Lorimer pulls in his psychologist friend, Solly, who is helpful in gauging personalities during interrogations and in looking at the case from a different perspective.  Solly has helped Lorimer on other cases and his insights are once again an impetus to Lorimer's thought processes.  Can the two men and the Glasgow Police discover what is going on before more lives are lost?

Alex Gray has written eleven novels in the DCI Lorimer series with another one coming in the spring of 2018.  Lorimer is not a flashy detective or one who ignores police procedure.  Instead, he uses the investigative tools available to him along with his own common sense to solve the murders that mar the Glasgow landscape.  His use of the psychologist as a consultant lends more interest to the cases but it is always clear who is in charge.  This book is recommended for mystery readers.