In Dallas, TX, middle-aged couple Jamie and Jennifer Faith were on a routine early morning stroll with their dog when a man attacked out of nowhere, injuring Jennifer, duct taping her hands, and fatally shooting her husband, Jamie. What was behind the mystery attack?

When devoted single mom Becky Bliefnick fails to pick up her boys from school in Quincy, IL, her father went to check on her and found her dead in the bathroom. Detectives learn she was going through a contentious divorce and dating someone new; they find a major clue in an unlikely place–on an episode of the game show "Family Feud."

Border patrol agents discovered the bodies of a young mother and her toddler son along the Rio Grande. Detectives closed in on a surprising suspect.

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When single mom Sadie Beacham didn't receive a good night call from her boyfriend, single father Rosalio Gutierrez Jr., she was alarmed and went to his house to find his screen door wide open and blood all over the floor. Wisconsin detectives could not locate his body but DNA evidence pointed to someone Sadie knew well.

A man is gunned down on a Louisville sidewalk during Derby week. A few weeks later, the bodies of two teenage boys are found burned and abandoned in a vacant lot. Detectives investigate a strange connection between the murders.

Around 5:40 am on July 31, 2022 In Strongsville, OH, a car with three teenage friends inside - Mackenzie Shirilla (driver), Dominic Russo (front passenger), and Davion Flanagan (backseat) - careens into a building's brick wall at 100 miles an hour, killing two of them instantly and injuring the third.

Legal scholar Dan Markel is gunned down execution style as he pull into the driveway of his Florida home. Detectives hunt for a killer, asking themselves who would hire a hitman to murder a law professor.

In 2002, a blueberry farmer in Ottawa County, Michigan, made a shocking discovery in his fields: the severely burned and beaten body of a man inside a trunk. Despite exhaustive efforts, investigators were unable to identify him, and he became known only as "Jack in the Box." The case sat cold on investigators' desks until 2015, when a detective started receiving emails with clues about the victim's identity. Investigators followed the tips, finally unraveling the chilling details of a gruesome crime, and a calculated cover-up, leading to an international manhunt and an ultimate betrayal by family.

The cold-blooded murder of four family members in their own living room in a normally peaceful neighborhood shattered the local religious Sikh community. The wide-ranging investigation left many questioning if they truly knew their neighbors.

Disbarred attorney Richard Merritt prepared for a last home-cooked meal with his mother before he was set to report to jail for embezzlement. But he didn't show up on time and his ankle monitor had been cut. The next day, relatives found his mother stabbed to death in the basement of her home. Eight months later, Merritt was found in Nashville, TN, under an assumed name. When the murder trial started four years later, Merritt claimed an intruder had attacked them both and he had fled for his life.

Police receive a frantic 911 call about a woman who witnessed a murder; during her interrogation, detectives they wonder if she is a terrified witness or a killer.

A masked intruder stormed into a house party, murdering three young members of Detroit's LGBTQ community. As detectives worked to track down the killer, they uncovered a surprising and troubling motive.

Kay Baker, a 3rd grade school teacher and divorced mom of two in Lithia, FL, was found lying in her neighbor's yard bleeding to death with her throat slashed. Soon after police arrive and search her house, they find a trail of blood outside and use a K-9 and then helicopter infrared leading to a suspenseful search. They spot a wounded man in the woods, and arrest him as a possible suspect.

Rap musician Martell DeRouen, known as "Kardone," was found shot to death in his luxury apartment, the door locked from the inside. Detectives faced a challenging mystery as they investigated the puzzling murder.

When Ilene Gowan, a popular waitress at a local bar in Council Bluffs, Iowa, was found dead by the side of the road, her family called in famous forensic examiner Dr. Michael Baden to help solve the case.

After trying for 20 years to solve the mystery of a 6-year-old boy found dead in the woods, an artist's age progression portrait of the child posted on social media leads detectives to find new clues.

The sheriff's office responds to a 911 call from a distraught husband, who said his wife had killed herself with a gun. Once on the scene, detectives uncover chilling evidence that turned the case into a murder investigation.

Shayna Hubers called 911 to report she had killed her boyfriend, Ryan Post on, in self-defense after he attacked her. However, investigators soon learned he was planning a date with another woman and suspected Shayna killed him in a jealous rage.

When Joleen Cummings, a hairstylist at Tangles Hair Salon in Yulee, FL, failed to pick up her children for a planned celebration, and was reported missing by her ex-husband. Investigators discovered a bloody scene at the salon, but the hairstylist and her SUV were gone. [also shown as S3:E5]

Makeva Jenkins, a successful businesswoman and pregnant mother of three, boasted on Facebook that she had grown her business to six figures from being homeless. But just hours later, she was shot dead with a bullet to the head. Her husband Euri Jenkins, her brother Quay, and Euri's friend Dametri all relayed to police that a masked intruder had shot and killed her. Police soon uncover a murder-for-hire plot.

When Ohio State senior Reagan Tokes fails to respond to messages from her parents, they fear the worst. Their nightmare becomes a reality when a 911 caller reports the discovery of a female body in the local park, shot execution style. Knowing a brutal killer is on the loose, detectives race to solve the crime and soon discover CCTV footage.

The murder trial of prominent lawyer Tex McIver transfixed Atlanta. McIver claimed his gun accidentally went off, unintentionally shooting his wife in the back as they drove home. But, did McIver have a secret motive to want his wife dead?

When school teacher Catherine Edwards missed a family outing, her worried parents went to her apartment to check on her. There, they made the horrifying discovery: Catherine had been restrained with law enforcement style handcuffs and murdered. Investigators followed dozens of leads as the alarmed community worried about a killer on the loose. Given the handcuffs, investigators even looked at fellow police officers but the case remained a mystery. Nearly three decades later, a team of dedicated detectives, a Texas Ranger, and forensic genealogists teamed up to catch an unlikely killer, finally bringing justice to the Edwards family and the city of Beaumont.

When Brandi Peters and her three children were found murdered in Tallahassee in 2010, prosecutors pointed the finger at her ex-boyfriend, Henry Segura, who owed her more than $20,000 in child support. But as the trial got underway, an imprisoned drug dealer came forward, saying he had ordered the murders from prison.