When a prominent Santa Rosa, CA, couple is found gunned down at the offices of one of the world's most popular cartoons, detectives are left to untangle the inner workings of a decades-long marriage.

A picture-perfect Navy family is shattered when the father is found shot to death after returning home from deployment; detectives are led to believe the crime is a tragic coincidence until a dark plan devised from lust and greed comes to light.

When a father in Spokane, WA, is found shot to death in his vehicle, detectives work for years to unmask a vicious killer who isn't afraid to silence witnesses; they eventually uncover a long-kept family secret that breaks the case wide open.

After an Air Force recruiter is found dead in a ditch near his Ohio home, authorities chase down several leads until the case culminates with a sting operation worthy of an international spy drama.

After gunshots ring out in rural New Jersey, police discover a beloved father shot to death and a vehicle taken from the premises. Investigators must determine if this is a random act of violence or a murder plot spun from an ongoing dispute.

After a local antique shop owner is murdered in a seemingly random home invasion, North Carolina police discover there is more to the story when a web of lies and infidelity are revealed.

When a retired nuclear physicist is reported missing, investigators discover he lived a reclusive life fueled by paranoia. As detectives race to find him, they begin to wonder whether his fears were unfounded, or if his worst nightmare had just come true.

When a local general store owner in Rusk, TX, calls 911 making a harrowing confession, the investigation is seemingly cut and dry. As detectives dig deeper, they discover a disturbing pattern making them rethink the motivation behind this crime.

An early morning apartment fire in Fort Worth, TX, sparks a murder investigation when 31-year-old Ashlea Harris' body is found beaten and bound inside; detectives quickly work to solve the case and uncover an elaborate plot fueled by revenge and greed.

After a mother and son are brutally attacked during a home invasion, Illinois police chase down several leads. They uncover a shocking motive with an occult leader and her loyal followers at the center of the crime.

When a beloved mother goes missing on her birthday, detectives are faced with several possible suspects before focusing on a co-worker with a shocking past who will do anything to hide their true identity.

After a small-town man is found shot to death at a Missouri roadside park, the evidence trail leads detectives further into the man's complicated past where they uncover a wicked plot that no one saw coming.

Police follow a lead in a missing persons investigation to a 115-acre farm, unearthing the site of a gruesome crime and a seductive killer that will go down in New Hampshire history.

A loving father agrees to give his ex-wife a chance to reconcile. When his loved ones can’t reach him, however, an unexpected tip is brought to Oklahoma police that will uncover a toxic love triangle and horrific crime scene.

When a beloved family man dies in a house fire, his wife and children must grapple with their unexpected loss. As investigators delve deeper into the fire’s origin, evidence exposes a scheme involving fraud, infidelity and a killer fueled by greed.

When a professional basketball star is gunned down in his hometown of Memphis, the case goes cold for nearly a decade. However, after a new team of investigators take over, they uncover the missing murder weapon and a mastermind close to home court.

A 62-year-old man bails his stepdaughter out of jail for attempted murder and soon after is found dead of natural causes. But investigators learn his death may not be what it seems, and a family must turn on each other for the truth to be revealed.

A San Angelo woman loses three romantic partners in the span of three years. Texas Rangers are brought in to investigate the most recent death and look to uncover if this is terrible misfortune or a diabolical pattern.

Years after a beloved father is accidentally shot in his home, the family matriarch mysteriously vanishes. As a second investigation launches, a shocking confession reveals a family secret about how far a son is willing to go for his mother.

When a 32-year-old man vanishes in Fort Meyers, FL, police quickly link an abandoned, blood-soaked vehicle to his case. Investigators use GPS to retrace his steps and must determine if this missing man is a victim or killer?

An Arizona man is shot to death in his garage before he’s able to read the results of a paternity test. Investigators follow a surveillance trail across town to uncover the twisted events that led up to his death.

When a loving father is gunned down in upstate New York, a hunt for the gunman ensues that crosses state lines. As several suspects are brought in, investigators must determine who’s telling the truth to finally reveal the ruthless mastermind.

When a Texas woman discovers her husband’s brutally stabbed body in their ransacked home, police suspect he was the victim of a robbery gone wrong. As they dig deeper, a torrid love affair built on manipulation and greed is unveiled.

After what appears to be a fatal road rage incident, authorities in Clifton, AZ, follow a trail of recovered text messages that suggest this was no random attack, but instead a cold-blooded murder.

A prominent private investigator is reported missing after he fails to return from a business trip. When the case goes cold, a former Russian spy assists the FBI in a sting operation to uncover the truth behind his disappearance.

Police believe that a dependable Florida man left town of his own volition when he fails to show up for work, but as years go by, town rumors lead police to unearth a gruesome crime.

After a loving father is found dead in the bedroom of his Oklahoma home by his ex-wife, Broken Arrow police must unpack a complex family dynamic and a loyalty based on greed in order to get answers.

Crosby, TN, is shocked when a beloved father and pastor is found dead outside a ransacked house; police question if this was a robbery gone wrong until an unexpected witness comes forward to reveal the disturbing truth.

California police receive a bizarre 911 call from an attorney who informs them of a death but won't share more details; an eerie feeling of déjà vu covers the investigation when detectives learn the details of a 30-year-old case in the same home.

After the bloody slaying of two men in rural South Carolina, a witness comes forward with information implicating her own family, leaving police to uncover if blood really is thicker than water.

When a prominent Florida optometrist is bludgeoned to death in his home, Melbourne police must investigate claims of self-defense; the evidence trail leads them to a young witness who reveals a wicked murder plot.

When a father is found shot to death in his country home, the family immediately accuses the victim’s on-again/off-again ex-spouse. However, evidence soon suggests there might be more players to blame than simply a woman scorned.

After a welfare check is called in on a 53-year-old Texas man, police soon discover him shot to death in a Louisiana swamp that’s 450 miles from his home. Detectives devise a sting operation to track down his killer and reveal a vengeful murder plot.

When a local EMT dies in a suspicious house fire in Mississippi, investigators work for two years to expose the mastermind behind her death and uncover a greedy scheme from an unlikely source.

When a renowned Missouri snake breeder is discovered in a pool of blood, investigators believe his death was caused by one of his snakes. However, shocking evidence is found on scene, launching a homicide investigation that unveils a sinister plot.

After three Atlanta men are gunned down in the span of three days, detectives connect the murders to two exotic dancers. Knowing only their stage names, investigators race to find the women and uncover the motive behind this devastating crime spree.

After skeletal remains are uncovered at a makeshift dumpsite in Fort Sumner, NM, investigators are left to untangle a complicated family history that reveals the callous truth behind what happened.

When human remains are discovered by road workers in West Virginia, a decades-old missing person’s case is reopened and investigators are left to unravel an extensive history of scams and violence, leading them to a malicious con-woman.

A family demands answers when the body of an Arizona woman is discovered in a remote area of Texas. Evidence left behind leads investigators to unravel a web of deceit until a shocking confession reveals the true mastermind

When Texas authorities learn of a murder-for-hire plot against an acclaimed boxer, they must devise an undercover sting operation and race against the clock to save his life and expose the remorseless mastermind.

After a demolition derby driver is found gunned down in his California auto shop, police uncover a dangerous love match that led one woman to commit the ultimate crime.

After responding to a frantic 911 call from a care-facility nurse who has discovered her patient with severe stab wounds and clinging to life, police receive an unexpected tip.

When a beloved father and driven entrepreneur is fatally shot at a busy California intersection, authorities discover a recent business venture that led one partnership to turn deadly.

After the body of a young San Antonio man is found dumped in a local cemetery, investigators retrace the victim's steps to untangle a web of deceit that begins with a heartless woman.

The coastal community of Sargent, Texas is thrown into shock when a beloved retiree is found executed in his home. As the investigation unfolds, an unlikely witness comes forward and leads investigators to uncover a malicious murder plot.

Rumors spread through a small town in Indiana after a well-known resident is found dead in his home after hosting a party. Authorities investigate accusations from the partygoers to expose how a toxic love triangle turned deadly.

When an Iowa mother and her newborn son are reported missing, police are in a race against time to rescue the pair and stop a maniacal woman from enacting a dangerous plan.

When a loving father is shot to death in front of his home by a masked gunman on Halloween night, Los Angeles Police must follow the evidence to determine whether this was a case of holiday hijinks gone awry or something far more sinister.

Halloween turns into a real-life horror movie when a single mother is gunned down on her way home from trick-or-treating by a costumed killer in Florida. Detectives uncover an unexpected witness that helps reveal the monster behind the mask.

When two men disappear in the quiet community of Clemmons, NC, rumors swirl about a devil-worshipping couple and their house of horrors. An investigation leads police to discover there may be more than secrets buried in the backyard.

When a beloved woman goes missing in Everett, WA, police find that her apartment was the scene of a violent attack. Unable to find her, investigators are led to a coven of modern-day wiccans and one witness who reveals the horrifying truth.

When two young women are brutally murdered in Phoenix, friends and family wait decades for answers. When advancements in DNA reinvigorate the case, police discover their killer has been hiding in plain sight.

(S31:E20) wasn't aired at this time as she is getting a new trial. // A frantic 911 call leads police to the bodies of Pam Hargan and her youngest adult daughter Helen Hargan in what appears to be a murder-suicide in the upscale neighborhood of McLean, VA. Investigators soon discover a trail of deceit that exposes an unexpected killer.