Investigation Discovery HD

A handyman, living rent-free in the home of a generous friend, grows increasingly paranoid about his neighbors; filming them constantly and fighting with them incessantly until conflict escalates out of control and culminates in explosive violence.

In Midtown Miami, a naked man's rampage at a gym spills onto the streets; in Houston, a nude intruder leaves behind a chilling message; a naked prowler keeps a Georgia community on edge; in Ohio, a topless woman leads police on a high-speed chase.

A machete-wielding naked man terrorizes a gas station; a shoplifter stuffs steaks in his pants which he quickly sheds; a naked driver unleashes his wrath and more on a cruiser; a high-speed chase in Santa Fe ends with a crash and a bizarre tirade.

In Houston, a naked man assaults commuters with pesticides; in North Carolina, a naked woman steals an officer's cruiser; in Miami, a beachgoer tries to steal a jet ski; in Texas, a couple awakens to a naked man standing over their bed.

A colorful cast of naked offenders in the South include a machete-wielding home invader, a stolen squad car, a pants-less driver who toys with deputies and a country icon in the buff's brush with the law in Texas.

After Kacie Woody discovers Internet chat rooms, the popular teen has her pick of high school hunks hoping to connect; the teen is exchanging IMs with her latest love interest, when a silver van creaks to a stop outside her house.

When Ray and Marie Thornton go out for a drive in the country on Easter Sunday, they are almost chased off the road by a tailgating van and when they see the driver changing license plates and dumping a bloody sheet, they call police.

Dawnia Dacosta attends nursing school, works the late shift and goes to church for evening services; one night she runs out of fuel and walks to the nearest station; then a man in a van offers a ride back to her car.

Lyle and Carol Kopenskey are high school sweethearts who marry after graduation; after 40 years of marriage, one of them becomes involved in an extra-marital affair that leads to cold-blooded murder.

After losing her husband in a tragic accident, a God-fearing Cindy McKay claims she has to bend the law to pay off his illicit debts; authorities soon realize that McKay is a criminal mastermind.

In Prichard, Ala., loving father Re'Mano Campbell is found murdered in his home; it takes the cunning wit of local investigators to unravel the mystery of who murdered him.

Three men die over a span of a dozen years, with no suspicion of wrongdoing and no files charged; but when a deadly car explosion rips through downtown Pensacola, Fla., a new investigation begins; all suspicion points toward just one person.

After a 19-year-old is found dead in her car, detectives discover that her volatile love life could be a major factor.

Loretta Bowersock is dropped off at a mall for a day of shopping, but she is never seen again; struggling to come up with a suspect, investigators discover Bowersock has a shocking secret that may explain her disappearance.

After teenager Marlisa Wells is stabbed to death, her friend says she was keeping a secret from her family, and investigators must determine whether the secret led to her brutal murder.

A woman's husband becomes the prime suspect in her brutal murder, but the husband provides an airtight alibi.

Experts delve into chilling cases of "family annihilators" - psychopaths who view spouses, children, siblings, and parents not as beloved people but simply as potential victims.

The idea that a child may possess the same wicked traits found in the most sadistic killers is every parent's worst nightmare; experts examine the early warning signs in psychopathic killers apprehended as teens and young adults.

A graduate student calls 911 to say she just shot her boyfriend, a 29-year-old attorney, in self-defense; police soon discover that her story doesn't add up and realize they are face-to-face with a psychopath.

A vehicle plows down a 75-year-old military veteran on a country road in an apparent hit-and-run; when a young man confesses to the crime, detectives quickly learn they've encountered a psychopath with an intense desire to thrill kill.

When a young mother goes missing, her husband joins the search; police discover her dismembered body in a stack of bins; detectives find her husband to be a typical suburban dad, but learn a murderous psychopath lurks within.

A long-simmering feud between a man and his stepfather reignites under one roof. As property disputes, accusations, and daily conflicts escalate, a family home becomes a battleground where rising tensions threaten to end in tragedy.

When Katlyn Lyon Montgomery dies in October 2022, her mother turns to TikTok to share her grief and demand justice, building an online community to help hold Katlyn's killer accountable.

After the shooting deaths of father, mother, and two adolescent boys in their suburban Baltimore home, investigators realize it's not a robbery gone wrong but rather the execution of a loving family, done by a callous psychopathic killer.

A killer guns down a 46-year-old woman, and detectives discover that a fleeing Sheriff's Deputy is the assailant; less than 48 hours later, they arrest him and reveal an unrepentant psychopath capable of executing the love of his life in cold blood.

A long-simmering feud between a man and his stepfather reignites under one roof. As property disputes, accusations, and daily conflicts escalate, a family home becomes a battleground where rising tensions threaten to end in tragedy.