In the style of "My Ghost Story", this special will tell the terrifying tales of people whose pasts literally come back to haunt them. These are the stories of people who wronged the one person they shouldn't have: a person so hell bent on revenge that even death won't stop them. When a vengeful ghost returns to get payback, nothing is off limits.
Facebook, Twitter, Google, iPhone— they're the names of technologies so pervasive in our 21st century lives that we've started using them as verbs. Behind these technologies are individuals whose ingenuity and enterprising spirit have profoundly changed our lives. Far from being computer nerds, these tech geniuses are billionaire celebrities, household names and the subjects of hit movies. From Steve Jobs of Apple to Mark Zuckerburg of Facebook, here are the most famous modern titans of tech.