Synopsis for
The 'Human' Factor (1975)

John Kinsdale is a devout family man working as a NATO computer specialist in Naples, Italy. When political terrorists kill his entire family, John uses his technological prowess to track and hunt down the cold-blooded killers.

Trying to prevent him from taking the law into his own hands are a local police inspector, a U.S. military commander, and peers MacAllister and Janice. But nothing short can prevent John from meting out his bloody brand of grief-stricken revenge.