In the Shadow of Gotham, by Stefanie Pintoff

In 1906 New York, we meet police detective Simon Ziele, who investigates the murder of a young woman in her bedroom in the middle of an afternoon.  There should be many clues, but the detective is at a loss when he is contacted by Alistair Sinclair, a criminologist at Columbia University.  Sinclair is deeply interested in learning about the psychology of criminals, especially murderers.
Ziele teams up with Sinclair and his assistants and together they develop some theories of who the murderer might be.  But will they be able to stop the killer from killing again?
I found this novel interesting throughout and once again failed to identify the real villain.  The historical touches -- using the telephone, the disaster aboard the General Slocum ferry, various details of living in New York at the beginning of the twentieth century -- were fun.
This is Pintoff's first published book;  I look forward to her next.