TV Guide Investigation Discovery Tuesday

In 2001, someone murders a father, setting his Florida home ablaze, and his sons disappear and hopes rise for their safe return.

A celebrity facialist spirals after online attacks and stalking she believes are by a rival, and her supposed tormentors turn out to be friends.

Joel Frazier of Dalhart, Texas, is the father of two former rodeo queens, Camie and Jamie, but suddenly he goes missing in 2017 and the town rumor mill is busy.

Detectives investigate to unravel the mystery when a six-year-old beauty queen is found murdered inside of her family's home in Boulder, Colo.

Catherine Cousins pursues a scandalous affair with family man Tim Koile and plotted to get rid of her husband Sean and cash in on his life insurance policy.

When police find a dying man lying in a field in Delaware, he accuses acquaintance George Kalomeris of stealing thousands of dollars from him and shooting him.

Single mom Carrie Caudill and a friend go on a girl's night out, but out of nowhere an unexpected confrontation puts Carrie on a collision course with a madman.

As Natalie Purdie makes new friends both on and off her high school dance squad in Norfolk, Va., she has no idea a violent obsession revolves around her.

After settling down into their dream home in Academy Hill in Newark, Del., 46-year-old Debbie Puglisi is kidnapped from her home in broad daylight.

After single mother Barbara Nunn relocates to Florida and lands a job at a local diner, a surprise confrontation with customers ends in murder.

A man spent almost three decades in prison for the murder of his friend, and then his murder conviction was overturned and was finally exonerated.

Two young women were found dead near a ski resort in Breckenridge, Colo., in 1982, and even though the cases were easily linked they soon went cold.

After the body of Mengqi Ji was found buried in a grave near Columbia, Mo., a tree would eventually tell investigators who left her lifeless body buried there.

Diana Duve was last seen leaving a bar in Vero Beach, Fla., with her on-again, off-again boyfriend, Mike Jones, and her mother knew something was wrong.

Michelle looks up to her father, but over time, fear and disgust replaces respect, but her world changes forever as horrific revelations finally emerge.

Elisabeth & Frank reconnect after years apart, but as their toxic relationship blows up, it results in a fire, leaving one dead and the other sits behind bars.

Two young men confess to a double murder and they claim they were assaulted and killed in self-defense, but 30-years-later, the two men have different stories.

At night, Lorenzo Gilyard was a monster who preyed on women; cameras go inside the prison to get answers from the notorious serial killer.

Amy's worried about her brother, Joel's, behavior, and his girlfriend, Melanie, suffers abuse, but they both discover their worst fears have come true.

Patrick Pidock knows there's something dark inside him and he's warned that he'll kill someone, but no one knows how dangerous he is until he takes a life.

A young woman meets a broken young man but she hopes that her love will change him, instead he returns her love with fear, cruelty and control.

Trina always had a tough childhood, but it becomes a nightmare when her mother brings home her new boyfriend, Robert, who is controlling.

When two children turn up dead in a hot car, police suspect their mother is lying. Ranger Holland joins the investigation to find out what really happened.

After a businessman is killed, Detective Robert Freitas uses his wits and a wiretap to outsmart a deceitful associate who believed he'd gotten away with murder.

Trina always had a tough childhood, but it becomes a nightmare when her mother brings home her new boyfriend, Robert, who is controlling.

When two children turn up dead in a hot car, police suspect their mother is lying. Ranger Holland joins the investigation to find out what really happened.

A farmhand goes missing from a sprawling cattle ranch, but the case takes a sinister turn when his body shows up miles down the Coweeman river.

When a father becomes violent, his son decides to take matters into his own hands when he realizes that he is the evil his family needs protection from.

After investigators learn that someone has been abducted from their job, detectives discover a personal connection between the victim and the kidnappers.

When police find a bullet-riddled body on Valentine's Day, detectives soon follow a trail of secrets, manipulation and betrayal to get to the truth.