Vietnam Vindication — Dan Anderson

For the past five years, a vicious assassin has methodically murdered members of an Army unit who served in Vietnam on the first day of Tet. Chauncey McFadden, Los Angeles PI, is asked to help stop this brutal vendetta before it claims the lives of the remaining squad members. Despite Chauncey's best efforts, the body count soars as victims are dispatched in ritualistic ways by a killer as enigmatic as he is lethal.