Investigation Discovery Tuesday

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

Buying goods from home

Buying goods from home

How restaurant co-workers are devastated when one of their own is found dead near a soccer pitch at the edge of their quiet Indiana town

Tyre marks and fibres snare a murderer who stabbed two women, and a man stages an 'accident' to kill his wife

Evidence found underwater, including the case of a woman discovered floating in a pond and a man who claimed his girlfriend was killed by a flash flood

A case from 2010 when Amber Jackson disappeared from her Kauai home, only to be found brutally murdered days later

Detective Postiglione examines the double homicide of two college students near a Nashville university. When a third victim was shot dead, Pat launched a state-wide manhunt

Killings where the bodies were located in swampland, principally due to the perpetrators believing such terrain helps conceal vital evidence against them

How, after a baby was found abandoned along Ohio's Scioto River, police discovered the child's mother had been murdered

The case of Loretta Bowersock, who in December 2004 disappeared while shopping, only for her body to be discovered in a shallow grave two years later

The 1995 case of Wendy Kratzert, whose van initially appeared to have skidded off the road. On closer inspection, police ruled out misadventure as the cause of her death

A case in which an Upstate New York cab driver was shot dead in his car. The entire area was dumbfounded as to who would kill a man known for his great generosity

Cindy Albrecht went missing from her home near the Indy 500. When her headless body was found soon after, police crossed state lines to get their prime suspect

The case of career criminal Kenneth 'Speedy' Raulerson, who fled Florida to Alaska to work the crab boats. However, he later returned home, prepared to go down fighting

The case of robber Walter Rhodes, who lost a leg while fleeing police. Released from prison 18 years later, he re-offended by violating the terms of his parole

The case of 36-year-old recently wed Carol Grannon, who disappeared in March 1999. Her remains were later found encased in concrete in a manhole

In Georgia, 2011, police hunt for a dangerous cop killer. They get a shocking call from the man they've been looking for telling them he has hostages

People recount how loved ones became killers

A case in which police responding to an apparent robbery found one family member dead and another left in a critical condition

A case from Pueblo, Colorado, where police found charred human corpse after a fire. Later, investigators located cracks in a large, multi-generational family

A case in which an Upstate New York cab driver was shot dead in his car. The entire area was dumbfounded as to who would kill a man known for his great generosity

Cindy Albrecht went missing from her home near the Indy 500. When her headless body was found soon after, police crossed state lines to get their prime suspect

The case of career criminal Kenneth 'Speedy' Raulerson, who fled Florida to Alaska to work the crab boats. However, he later returned home, prepared to go down fighting

The case of robber Walter Rhodes, who lost a leg while fleeing police. Released from prison 18 years later, he re-offended by violating the terms of his parole