Investigation Discovery

Four teenage girls are gunned down at an Austin yogurt shop.

In 1982, a young mother's husband discovers her murdered at home with an ax in her head; everyone thinks a psychopath is on the loose, but police never make an arrest; the authorities find that their killer is someone very close to home.

A celebrity facialist says a stalker torments her in L.A.'s brutal beauty world. As her story unravels, so do her lies until police reveal the shocking twist. Nothing in this case is what it seems.

The story of a successful family caught up in lies and deception, which led to murder; a well-known Miami practice makes more enemies than the owners care to admit.

Andrew Kissel, a confessed fraudster, is found stabbed to death in the basement of his Connecticut home; detectives must unravel every detail from the previous 24 hours and, in doing so, come up with a long list of suspects.

A quiet, average teenager with a sinister interest in the occult brutally murders his elderly neighbor in a ritualistic attempt to become a vampire and attain immortality.

The story of a successful family caught up in lies and deception, which led to murder; a well-known Miami practice makes more enemies than the owners care to admit.

Andrew Kissel, a confessed fraudster, is found stabbed to death in the basement of his Connecticut home; detectives must unravel every detail from the previous 24 hours and, in doing so, come up with a long list of suspects.

A quiet, average teenager with a sinister interest in the occult brutally murders his elderly neighbor in a ritualistic attempt to become a vampire and attain immortality.

The story of a successful family caught up in lies and deception, which led to murder; a well-known Miami practice makes more enemies than the owners care to admit.

Andrew Kissel, a confessed fraudster, is found stabbed to death in the basement of his Connecticut home; detectives must unravel every detail from the previous 24 hours and, in doing so, come up with a long list of suspects.

When widow Valena Shepherd is found dead at home, police suspect foul play; investigators follow digital clues that suggest Valena knew her killer and hope the data contained within a digital heart monitor device pinpoints the perpetrator.

A young woman finds herself increasingly isolated from her friends and family by the man she loves; as his efforts to control her intensify, she comes to realize that he will stop at nothing to keep her by his side.

When a body is discovered in a backyard, police have little to go on; the homeowner has recently disappeared, and all that he has left behind are clues posted online; police wonder if they will lead to the identity of the victim -- or the killer.

A routine stop for speeding soon turns personal when a deputy comes within inches of death; a knife-wielding man takes a dozen children hostage on a school bus; a suspect leads officers on a long chase that tests their police cars.

An ax-wielding man taunts a motorist; protesters disrupt a highway, causing motorists to lose it; a nuisance relentlessly brake-checks another driver, almost causing multiple accidents; two raging drivers have a roadside showdown.

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.

Joseph Son had the right look to play Hollywood villains, but a terrible secret from his past resurfaces more than a decade later; when prosecutors face off with the actor on the stand, it's hard to tell fact from fiction.

Craig Lester Thrift brags about getting away with murder, but everyone thinks he is kidding; Robyn Barry knows Thrift better than anyone, and she begins to suspect he isn't joking; someone needs to believe her before Thrift makes her his next victim.

Hurricane Harvey hits Houston, realtor and mother Crystal McDowell disappear; with local resources strained and leads scarce, an abandoned car and a mysterious figure on surveillance prompt authorities to call in Texas Ranger Jim Holland for answers.

Domeneka believes she's found real love with her boyfriend, Michael. After having a daughter together, he reveals his violent side, and Domeneka fears there's no keeping him from following through on his threats, and that she'll be his next target.

After Ranger James Holland receives a phone call from the Pennsylvania State Police, he finds himself face-to-face with a witness who could be the key to solving one of the oldest cold case mysteries in the history of the state.

Craig Lester Thrift brags about getting away with murder, but everyone thinks he is kidding; Robyn Barry knows Thrift better than anyone, and she begins to suspect he isn't joking; someone needs to believe her before Thrift makes her his next victim.

Domeneka believes she's found real love with her boyfriend, Michael. After having a daughter together, he reveals his violent side, and Domeneka fears there's no keeping him from following through on his threats, and that she'll be his next target.