Carter Cervantez: A morning apartment fire in Texas sparks a murder investigation when a woman's body is found beaten and bound inside. (S31, ep 9) [S]
Rebecca Barker: The case seems clear when a Texas shop owner calls 911 with a harrowing confession, but detectives find a pattern that makes them think again. (S31, ep 8) [S]
Willa Blanc: A retired, paranoid nuclear physicist is reported missing. As detectives race to find him, they wonder whether his fears were unfounded after all. (S31, ep 7) [S]
Angel Sawyer: A local antique shop owner is murdered in a seemingly random home invasion, but North Carolina police discover there is more to the story. (S31, ep 6) [S]
Susan Gigliotti: After a beloved father is shot to death, police must work out if the crime was random violence or the result of an ongoing feud. (S31, ep 5) [S]
Angelina Hamrick: An Air Force recruiter is found dead in a ditch, leading to an investigation that culminates with a sting operation worthy of a spy drama. (S31, ep 4) [S]
Joann Peterson: When a father is found shot to death in his vehicle, detectives work for years to unmask a vicious killer who isn't afraid to silence witnesses. (S31, ep 3) [S]
Catherina Voss: A picture-perfect Navy family is shattered when the father is found shot to death after returning home from deployment. (S31, ep 2) [S]
Amber Andrews: A loving father gives his ex-wife a chance to reconcile, but later, Oklahoma police uncover a toxic love triangle and horrific crime scene. (S31, ep 14) [S]
Sheila LaBarre: A lead in a missing persons investigation ends at a 115-acre farm, unearthing the site of a crime that went down in New Hampshire history. (S31, ep 13) [S]
April Quick: After a man is found shot to death at a roadside park, the evidence trail leads detectives further into the man's complicated past. (S31, ep 12) [S]
Patricia Brown: Investigators lock in robbery as a motive when a man is killed in North Carolina. But years later, a mysterious letter reveals an even more sinister motive. [S]
Sherra Wright: When a professional basketball star is shot dead, the case goes cold for years until new evidence points to a mastermind close to home. (S31, ep 16) [S]
Amber Andrews: A loving father gives his ex-wife a chance to reconcile, but later, Oklahoma police uncover a toxic love triangle and horrific crime scene. (S31, ep 14) [S]
Lisa Dolph Hostetter: When a young woman is shot on a remote highway in Michigan, the victim's past reveals a scandalous web with a vicious killer at the centre. [S]
Irenia Cotner: After a home invasion attack, Illinois police uncover a shocking motive with an occult leader and her loyal followers at the centre of the deed. (S31, ep 10) [S]
Rebecca Barker: The case seems clear when a Texas shop owner calls 911 with a harrowing confession, but detectives find a pattern that makes them think again. (S31, ep 8) [S]
Willa Blanc: A retired, paranoid nuclear physicist is reported missing. As detectives race to find him, they wonder whether his fears were unfounded after all. (S31, ep 7) [S]
Angel Sawyer: A local antique shop owner is murdered in a seemingly random home invasion, but North Carolina police discover there is more to the story. (S31, ep 6) [S]
Ciera Harp: Detectives investigating the death of an Atlanta-based rapper get a shock when they find horrifying evidence planted by the victim, seconds before his death. [S]
Susan Gigliotti: After a beloved father is shot to death, police must work out if the crime was random violence or the result of an ongoing feud. (S31, ep 5) [S]
Angelina Hamrick: An Air Force recruiter is found dead in a ditch, leading to an investigation that culminates with a sting operation worthy of a spy drama. (S31, ep 4) [S]
Joann Peterson: When a father is found shot to death in his vehicle, detectives work for years to unmask a vicious killer who isn't afraid to silence witnesses. (S31, ep 3) [S]
Catherina Voss: A picture-perfect Navy family is shattered when the father is found shot to death after returning home from deployment. (S31, ep 2) [S]
Shirley Nelson: The astonishing story of a scorned wife, an unfaithful husband, a murder-suicide attempt, and a crime scene at a cartoonist's office. (S31, ep 1) [S]
Daisy Gutierrez: The family of a missing young man are desperate for answers. A haunting text message sends detectives on a hunt for the truth about what happened. [S]
Lori Isenberg: The case of a missing boater takes a sinister turn when a local newspaper uncovers a shocking story, shaking up a peaceful lake town. [S]
Linda Dancer: An unsolved murder case resurfaces nearly a decade after leads run dry when an odd call from another state reveals the gruesome truth. [S]
Angel Brown: After a father's life is cut short in a car accident, Ohio investigators race against the clock to prevent a gruesome murder-for-hire plot. [S]
Tucker Moore-Reed: When a family dispute results in a death, detectives trawl through a list of suspects and find the leading lady at the centre of the crime. [S]
Crystal Gregoire: Investigators must determine whether they have a professional killer on their hands when a Tennessee man with rumoured mob connections is killed. [S]
Samantha Wohlford: When a young father in Texas vanishes without a trace and is later found murdered, mobile phone records and internet history reveal a cunning killer. [S]
Porsche Humphery: Friends and lovers all make the suspect list as detectives comb through the last days of a well-liked man shot dead in Milwaukee. [S]
Barbara Holder: When a woman finds her husband's body in their ransacked home, police suspect he was the victim of a robbery. But is something else at play? (S31, ep 24) [S]
Kathryn Sinkevitch: An Arizona man is shot dead before he's able to read the results of a paternity test, and investigators must discover the twisted events. (S31, ep 22) [S]
Aria Armstead: When a man vanishes in Florida, police link an abandoned, blood-soaked vehicle to his case and use GPS to see if he is a victim or a killer. (S31, ep 21) [S]
Purdie Clark: When a woman loses three romantic partners in the span of three years, Texas law enforcement looks to uncover the truth behind the tragic deaths. (S31, ep 18) [S]
Judy Naylor: A family turn on each other after a man is found dead soon after bailing his stepdaughter out of jail for attempted murder. (S31, ep 17) [S]
Sherra Wright: When a professional basketball star is shot dead, the case goes cold for years until new evidence points to a mastermind close to home. (S31, ep 16) [S]
Amber Andrews: A loving father gives his ex-wife a chance to reconcile, but later, Oklahoma police uncover a toxic love triangle and horrific crime scene. (S31, ep 14) [S]
Sheila LaBarre: A lead in a missing persons investigation ends at a 115-acre farm, unearthing the site of a crime that went down in New Hampshire history. (S31, ep 13) [S]
April Quick: After a man is found shot to death at a roadside park, the evidence trail leads detectives further into the man's complicated past. (S31, ep 12) [S]
Kimberly Kessler: When a mother goes missing on her birthday, detectives have several possible suspects before focusing on a co-worker with a shocking past. (S31, ep 11) [S]