Kill Six (Danny Carlisle Murder, #2)

Ken Bishop needed to kill his siblings. 
Well, maybe not all five of them, but at least three, maybe four.  He needed the money from his recently deceased mother's estate, and his one-sixth share wasn't going to cut it.  So, he killed a sister.  
Minnesote Bureau of Criminal Apprehension Agent Danny Carlisle is assigned to investigate the death of a Bishop's sister at a nursing home.  A woman with dementia who had been given only days to live.  A woman whose death the family said was a blessing.  The police wanted Carlisle to let it go, even after Carlisle discovered the woman had been murdered.  But Carlisle is not someone to let a murderer go free.  While Carlisle focusses on the nursing home staff, Ken Bishop is focussed on killing a brother.  But while he is doing that, someone kills one of his two remaining sisters, and then the last.  And now, Ken Bishop is wondering who is doing his killing for him, and if he will be next. Readers of John Sanford, Lee Child, Michael Connelly, Jeffrey Deaver, and like authors will enjoy this fast-paced thriller.