An "unfriending" leads a couple from Tennessee to their deaths.

Social media posts fuel the flames of jealousy in a teenage love triangle. When things get out of hand one Florida teen learns the hard way that posting threats and insults online aren’t as easily forgiven as a click of the mouse.

Sarah Ludemann thought she had the perfect life and perfect boyfriend, but when she realized she was sharing her man with another girl, social media became a vicious battlefield of jealously and threats that spilled over into real life.

When a career opportunity presents itself via social media, a naïve girl ignores warning signs and accepts a suspicious friend request. When she disappears a week later detectives uncover a case of mistaken identity.

When a high school football star and his best friend are randomly attacked, it's up to the police to figure out the motive behind the incident. Before long, social media posts hint that one of the victims is leading a double life.

A young woman shares details about her troubled relationship on social media and is later found murdered and her husband is viciously attacked. Detectives unravel years of secrets between the couple that lead to this unexpected tragedy.