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

The death of Charlie Billis in a car crash in 2009. The driver, his wife Chrissy, deliberately ran the vehicle into a tree after noting he had failed to fasten his seat belt, and later tried to unburden herself of her guilt after registering with an online dating service

The death of Toni Henthorn in an apparent hiking accident in the Rocky Mountain National Park in 2012. Her husband Harold claimed she had slipped and fallen from a cliff ledge. He stood to gain $4.5million in life insurance from the death, and three years later evidence was assembled to convict him of murder. The conviction also raised questions about his possible involvement in the mysterious death of his first wife

The case of 20-year-old Elijah 'Bear' Diaz, who vanished one night in August 2015 with his belongings. Californian investigators contemplated whether there was a connection with another disappearance

After her daughter's relationship with single father Scott Gellatly turned sour, Merry Jackson vowed to help Lori break free from his abuse. Scott however refused to back down, putting both both women at risk. In the event, he unleashed an attack that left one woman dead and the other serious injured

The disappearance of Air Force veteran Michael Giles from the quiet Dallas suburb of Garland. What appeared to be a straightforward missing persons case quickly morphed into a jigsaw puzzle of mistaken identity, fraud and murder