That might be an obsessive thought pattern among lawyers, a group predisposed to suicide. In her book on suicide "Night Falls Fast," Kay Redfield Jamison talks about the copycat syndrome. According to her research, there really is such an entity. A professor at Johns Hopkins University, Jamison herself had tried suicide. Here you can order her book.
Now that the details of the Williams' suicide are being made public, those very details can pave the way for despondent and discouraged lawyers. Sure, first try cutting the wrists. That doesn't work. Okay, there's always a sturdy belt around that will hold a human body. If the lawyers take care of the family financial affairs like Williams did in estate planning, then they can figure they are good guys.
Fortunately, this mindset can be short-circuited. Lawyers can call one friend. They can swing by the ER and just say they're very depressed, not necessarily suicidal. (I did just that in 2003. It saved my life without my being locked up in a psychiatric ward.) They can find out online where the 12-step meetings are and grab hold of that powerful program. They can track down their former therapist. They can get on their knees and ask a force bigger than themselves to lift the darkness.