TV Guide Investigation Discovery Tuesday

Buying goods from the comfort of home

Buying goods from the comfort of home

Buying goods from the comfort of home

Buying goods from the comfort of home

A case in which an obsessive video blogger, who shared every detail of the rollercoaster life she shared with her husband and their children, suffered a break-in during which the intruders tied her up, kidnapped her husband and executed him. Detectives soon discovered that someone had been keeping secrets

The case of Beverly Thompson, who was found bludgeoned to death in her own home. No one suspected her family and detectives remained puzzled until CCTV footage revealed someone was lying

A case in which a mother and Bible teacher went missing from her family's farm. Investigators in Missouri had to decipher a cryptic handwritten note, while a walk in nearby woods uncovered a mysterious skull

The case of 38-year-old Eric Franks, who vanished while preparing to move house with his long-lost high school girlfriend and the daughter they had together. However, he failed to called his mother after March 2011, leaving police struggling for answers as to his whereabouts

How, in 2012, a missing persons case in North Dakota grabbed the attention of Homeland Security officers. Investigators unraveled a scheme involving stolen hydraulic fracturing profits as well as a ruthless conman and his murderous partner