Dr. Death by Jonathan Kellerman

When Dr. Alex Delaware gets a call from help from his friend, LAPD detective Milo Sturgis, he isn't surprised.  The LAPD has used him before to provide psychological input into the criminals that commit murder.  But this case will be different.  One of the suspects has a connection to Delaware.

The victim is famous for what he does.  Dr. Eldon Mate is a proponent of helping terminal patients die when they want to and he has had lots of publicity for his cases.  That's where the connection comes in.  One of Mate's clients left behind a husband and children.  The husband had come to Alex to provide help to his daughter in the aftermath of losing her mother.  Patient confidentiality means that Alex can't tell Milo things he knows from that case.

The police are busy investigating the families of Mate's clients.  They begin to investigate the family that Alex counseled.  At the same time, Milo is contacted by an FBI agent that believes there is a connection to a serial killer that he has been tracking for years.  Which is more likely, that there is a connection to this killer or that Mate has been killed by a survivor?  Can Alex and Milo's friendship survive a strain caused by the rules of each individual's job?

This is the sixteenth Alex Delaware novel.  Fans will be familiar with Alex and Milo's friendship and their lives.  The new twists in this book add something more to the partnership.  An exploration of doctors who use their medical training to kill patients is also found in the novel.  This book is recommended for mystery readers.