Hurt Machine

Hurt Machine; A Moe Prager Mystery; Adult,Mystery, Detective, Suspense & Thrillers: written by Reed Farrel Coleman.
Moses Prager is an ex-cop, now P.I. who has just discovered he has gastric cancer. His daughter, Sarah  is getting married and he plans to wait till after the wedding to start treatment and in mean time keep the diagnosis a secret.
Sarah's Mom ,Katy had died several years before because on an investigation he was on. Sarah was their only child.
 His second wife,Carmella had looked him up to ask him to investigate the murder of her sister, Alta. Carmella had been raped &molested as a young child and then sent away from her family. She had been a cop also and married Moe when she was pregnant and he gave her son his name. She had took the boy and left him 9 years before.
Alta was an EMT and she and a partner Mae had let a man die in  a restaurant. A few weeks later Alta was murdered and police were not trying to get to the bottom of the case.
Moe tells her he will try to see what he can find out and he starts trying to get old friends from the force to help him. The more he digs the more people start threatening him. Why?
There are lots of dark secrets in this book. Read it to help unravel the mystery.