A missing pregnant woman sparks fear and suspicion in a small Indiana town.

A missing pregnant woman sparks fear and suspicion in a small Indiana town.

Casey, IL looks to their own citizens when they find out a house fire didn't kill Scott Collins, it was murder; secrets revealed about his life aren't enough to lead to his killer, it's his German Shepherd, who holds the key to solving his case.

Casey, IL looks to their own citizens when they find out a house fire didn't kill Scott Collins, it was murder; secrets revealed about his life aren't enough to lead to his killer, it's his German Shepherd, who holds the key to solving his case.

After teenager Jessica Dishon is murdered in Shepherdsville, KY, police must sort through her past relationships, jealous friends, and an old family feud to find the killer. [also shown as S6:E14]

After teenager Jessica Dishon is murdered in Shepherdsville, KY, police must sort through her past relationships, jealous friends, and an old family feud to find the killer. [also shown as S6:E14]

After a cattle rancher turns up dead in his trailer home, the minuscule town of Driscoll, ND, points fingers at everyone in the small population. Left with little evidence, it takes over a decade to hone in on his executioner. [also shown as S6:E13]

After a cattle rancher turns up dead in his trailer home, the minuscule town of Driscoll, ND, points fingers at everyone in the small population. Left with little evidence, it takes over a decade to hone in on his executioner. [also shown as S6:E13]

When missing dental assistant and mother Sharon Ray is found dead in a well, the town of Grand Rivers, KY, joins together to find who did this; loved ones wonder if Sharon was living a lie when those closest to her become prime suspects. [also shown as S6:E12]

When missing dental assistant and mother Sharon Ray is found dead in a well, the town of Grand Rivers, KY, joins together to find who did this; loved ones wonder if Sharon was living a lie when those closest to her become prime suspects. [also shown as S6:E12]

Tynesha Stewart, a college freshman at Texas A&M and niece of former NFL football players Jason and Aaron Glenn, is reported missing during spring break; as details of her private life emerge, police uncover jealous boyfriends and turmoil at home while making a discovery that will haunt Bordersville forever. [also shown as S6:E11]

Tynesha Stewart, a college freshman at Texas A&M and niece of former NFL football players Jason and Aaron Glenn, is reported missing during spring break; as details of her private life emerge, police uncover jealous boyfriends and turmoil at home while making a discovery that will haunt Bordersville forever. [also shown as S6:E11]

The burnt body of Sara Summer, a mother of three, turns up in a cornfield. News of this grim discovery sends the people of the quiet town of Trenton, TN, fearing for their safety while investigators search for clues to hunt down her killer.

The burnt body of Sara Summer, a mother of three, turns up in a cornfield. News of this grim discovery sends the people of the quiet town of Trenton, TN, fearing for their safety while investigators search for clues to hunt down her killer.

After a young father goes missing from work, the small town of Challis, ID, is abuzz with tales of infidelity and finger-pointing, leaving investigators to decipher what is fact and what is fiction.

After a young father goes missing from work, the small town of Challis, ID, is abuzz with tales of infidelity and finger-pointing, leaving investigators to decipher what is fact and what is fiction.