From writer Peter J. Tomasi and artist Maxim Šimic. Blood Tree stars two obsessed NYPD detectives on the hunt for a vicious butcher called the Angel Killer, a sociopath who preys on innocent family members of known murderers in order to “purify" the rest of society. Blood Tree confronts the battle of nature versus nurture, how present and future generations are tainted by past generations, and asks who must pay for the sins of the fathers…and perhaps even the sins of the mothers. Collects BLOOD TREE #1-6