His Broken Princess

This author writes serial killer heroes like no other, and every book I've read of hers to date is awesome. This one was no different. I LOVED it. It features the parents of Damian and Dominic from the Sociopath Duet, which for some strange reason I have yet to read. (?) It is also free if you sign up for this author's newsletter. At least I think it is still free. In any case, it was a fantastic read, and I would 100% recommend it.