The final book of The Twin Tiers Serial Killers trilogy is TRIGGER WARNING. Three serial killers are on the loose in the mostly rural area of Northeast Pennsylvania and Southeast Upstate New York, known as the Twin Tiers. The serial killers, all military veterans, are killing those that trigger them. They declare open season on people guilty of Stolen Valor, First Amendment Auditors, and people that go out of their way to harass other people and make...