Bests & Worsts Reviews from Amazon

I have read almost all of Nelson's books. John Corey NYPD / FBI is one of my all time favorite characters! I see that he co-wrote this. Makes me wonder. I almost never write a negative review, but from page one the violence was too much for me. Also, he dropped two F bombs in the first few sentences. This does seem to be Nelson - again from my past experience. I paid full price and returned it.