The Executioner #433: Point Blank
written by Michael Newton, under the pseudonym Don Pendleton
Four deputy U.S. marshals are slaughtered along with the witness they're guarding, a former Mafia member set to testify in New York. When it's revealed the kill order came from a powerful Calabria crime family, Mack Bolan decides it's time to stop the bloodshed at its source.
After arriving in Italy, Bolan learns trouble has already begun. Killing the witness is not enough; the Mafia is intent on murdering his entire family, including women and children. With local law enforcement on the Mafia's payroll and spies everywhere, infiltrating the family is nearly impossible…especially as Bolan has been marked for death. Dodging bullets at every turn, he's got to maximize every strike. The Mafia may have home advantage, but the Executioner won't stop until he blows their house down.