From grieving family and friends to jilted lovers and eyewitnesses, investigators pore over every detail and discrepancy to uncover motives for murder, along with the reason for suppressing key pieces of evidence.
An Oklahoma couple are butchered in their own bed. Sex tapes and racy photos lead investigators to a nudist colony in Kansas in search of answers. (S2, ep 1)
Investigators look into a deadly home invasion in Texas, quickly learning that the truth is darker than anyone could have imagined. (S2, ep 2)
In an affluent New Mexico oil town, former Marine Darrell Blagg is gunned down, with investigators remaining convinced his family know more than they are sharing. (S2, ep 3)
Morehouse Murder: Detectives find the body of Carlnell Walker in his car and quickly suspect the motive is somehow connected to his rap career. (S2, ep 4)
Over 25 years after a young man's body is found in the woods, detectives are shocked when a proclaimed killer appears live on the local news. (S2, ep 5)
A gunman kills reformed ex-gang member Aaron Iturra while asleep in his bed, leading Oregon detectives to string together pieces of evidence. (S2, ep 6)
A gunman shoots a real-estate mogul in his Arkansas home, leading detectives to uncover a deep family rift. (S2, ep 7)
A boy finds his mother unconscious and tied to her four-poster bed. Texas investigators uncover a series of betrayals that lead to a huge conclusion. (S2, ep 8)
Police discover 63-year-old Diana Burrow dead on her couch. A chorus of small-town rumours suggest it's a homicide, leading police to take a closer look. (S2, ep 9)
Police find beauty salon owner Dana Satterfield murdered in her shop. Their investigation spans 10 years before a chance encounter reveals all. (S2, ep 10)
When Rose Larner vanishes without a trace, detectives have no evidence or body. The biggest manhunt in state history follows. (S2, ep 11)
Wild Child, Evil Women: A gunman kills a college student, leading investigators to connect the dots between a mystery man, a confiscated race car and an unthinkable betrayal. (S2, ep 12)
A masked intruder shoots criminal defence lawyer Tim MacNeil in the head. Investigators suspect a connection to his work. (S2, ep 13)