The first book in the Victor McCain thrillers, The Hand of God, is available in audibook, narrated by John Glouchevich.  The Watchers and The Speaker, are also available in audibook, narrated Steve Rausch. 

Bounty hunter Victor McCain always wondered how his brother, Mikey, went from down-n-out loser to one of Louisville’s richest men. Now he knew: his brother sold his soul to the Devil. And in twenty-four hours, Mikey would die and spend eternity in Hell unless Victor agreed to hunt down a thief, a woman as deadly as she is beautiful. On a journey of murder and betrayal, Victor must now put his own soul at risk to save his only brother, battle a dark underground organization with the goal of nothing less than global war between Christians and Muslims, and fight creatures from man’s darkest nightmares. Then there’s the Hand of God, God’s own bounty hunter. In the end, will he be friend or enemy? Only Heaven knows.