Contract to Kill - Andrew Peterson

Contract to Kill is the fifth novel in the Nathan McBride Series. Unfortunately the last one published. There will hopefully be more. Kindleunlimited.

When a friend of Nathan witnesses an execution style murder, and fears for his life, he calls Nathan for help. Nathan and Harv become embroiled in a situation much more complicated than an execution. The killers are hunting Nathan's friend, and Nathan and his friends. It turns out national security is part of the problem too. Highly recommended.