TV Guide Investigation Discovery Wednesday

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

After a friend and holiday resort co-worker went missing on a desolate mountain, detectives had to sort through a list of tight-knit colleagues with potential motives for murder. One of them proved to have crucial information that would lead to a killer among them

Close-knit co-workers are devastated when one of their own is found dead near a soccer pitch at the edge of their quiet Indiana town. Investigators considered whether this murder was a random act of violence

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 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

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

The murder of US Air Force sergeant Nathan Paet, by his wife Michelle and accomplice Corry Hawkins who sought $650,000 in insurance money. Jurors were told Paet died in front of his four children, who ranged in age from two to nine, while Michelle feigned horror and surprise