A Fierce Vengeance - The Michael Callaway Thriller Series, #2

Man plans and God laughs. Alongside his fiancée, Carrie Marvin, Michael Callaway, former U. S. Customs Enforcement Agent, battled the devil and won, eliminating one of the world's most dangerous drug dealers. But the man's son, Derrick Drake, will make his father's evil accomplishments look trivial.  Drake wants only one thing. Vengeance. They murdered his father. Now they're going to pay for it. An eye for an eye isn't going to be enough to satisfy Drake.
Everyone behind his father's death is going to feel the same pain and rage they inflicted on him. He has a list. Callaway's friends. Federal buildings. But his revenge begins with Callaway and Carrie.  A hit man is taking out targets with uncanny precision. Is there a mole in the DEA? When Callaway's beautiful plans are shattered, he'll be sucked into in a vortex of fury with his own raging thirst for revenge, his "Boy Scout" reputation be damned.
Judge. Jury. An executioner with no mercy. To hell with the law. How far into evil will a good man go to exact his own fierce vengeance?