Ride-sharing company Uber X is accused of hiring drivers with criminal histories. Also featured: a Florida businessman who faked his own death and a murder that took place in a yoga store.

The investigation of UBER X continues, featuring an interview with a mother whose daughter was killed, after she was struck by a UBERX driver. Also: an interview with a father whose daughter was murdered and then dismembered.

The case of a woman jailed for the murder of her boyfriend, even though she maintains her innocence, is examined. Also: online dating apps are investigated and Matt visits Las Vegas for a social experiment.

Cyber stalking is spotlighted; new clues reignite the investigation of a murder from 40 years ago; part one of a series profiling a man known as "Zombie Hunter"; and a dog who put himself in harm's way, to save a group of children.

Part two of "Zombie Hunter"; an investigation into the killing of police officers; and an egg farmer, who knowingly sold bad eggs, is spotlighted.

A Texas oil Ponzi scheme is examined; part three of "Zombie Hunter"; and an update on Joey Buttafuoco.

"Zombie Hunter" continues, featuring an interview with the infamous man's ex-wife. Also featured: an investigation about hacking into nanny cameras; a profile of Heidi Fleiss, known as the Hollywood Madam; a look at how police hunt down sex offenders.

Featuring a former Georgia judge, who betrays the law; an in-depth look into the case of a woman convicted of murdering her husband with a stiletto heel; and a look at a former lottery official, who scammed the system.

Featuring a man, accused of killing his wife, who remains at large; an update on Joey Buttafuoco; an interview with the family of a sorority girl, who was found dead in her burning apartment; and an investigation into home security systems.

A look at a woman serving more than 60 years in prison for murdering her husband to collect on his life insurance, a case that was not solved for three years, and further updates on Joey Buttafuoco.

The widow of an Illinois police officer talks about her husband's death; a Baptist evangelist is convicted of video voyeurism.

A former police officer is accused of killing his wife; Matt Doran reports on a group of international non-profit bikers, who help wounded children; and a woman's account of how she survived a bank robbery.

Part one of a series that investigates a woman who shot two of her husbands, but was only convicted of killing one of them. Also: a look at "Woodlawn Jane Doe", whose murder remains unsolved, 40 years after it occurred.

The disappearance of a military wife and mother is spotlighted. Also: featured: the story of a man who married a woman serving a life sentence and built a shine for her in his home; and a look at Spokane, Washington's Police Department.

An investigation of a man who is a prime suspect in the disappearance of his fiancée; and a look at a physician and preacher accused of selling fake cancer treatments. Also: a profile of a man who started a foundation to supply police with bloodhounds.

A look at the disappearance of an Arizona college student and three young brothers who went missing, following a visit with their father. Also: a teenager details how he survived a DUI accident.

An examination of the murder of a military veteran, shot outside her house. Also: a look at a woman accused of leaving ex-husbands high and dry; and a cancer-stricken father who wants to get his daughter's killer out of jail.

A woman is drugged and raped by her husband, but advised by a judge to forgive him; women, who fell in love with Charles Manson and killed for him, are profiled in Manson Girls; and a man who married a maximum security prisoner.

A man is placed on the sex offender registry list for unknowingly having sex with an underage girl; prisoners who access social media to commit more crimes; and the unsolved murder of a Virginia family are featured.

Featuring a man who maintains his innocence, after being jailed for the murder of his family and their handyman; an examination of celebrity stalking stories; and a group of Florida teenagers, who made millions dealing OxyContin.

A traveling evangelist is convicted of video voyeurism for filming women without their consent, and a police investigation into a woman's strangling leads to her own family. Also: advice on defending yourself from crimes that can occur at the ATM.

Actor and producer Andre Bauth, who is accused of stabbing his roommate, is profiled. Also featured: an examination of clues that could indicate an upcoming mass shooting; and sketch artists offer their views on some of history's most famous trials.

Actor and producer Andre Bauth, who is accused of stabbing his roommate, is profiled. Also featured: an examination of clues that could indicate an upcoming mass shooting; and sketch artists offer their views on some of history's most famous trials.

An interview with a woman, who came face-to-face with a serial killer, and the story of a former accountant, who dedicates his life to solving crimes.

Profiling a Texas man who admitted to killing his two adopted stepsons, yet a legal loophole lets him walked away free. Also: a former Mrs. Orange County, who was arrested for child pornography, is spotlighted; and the lives of prison guards are examined.

Featuring a love triangle that resulted in the murder of a woman's husband; a visit to Washington, D.C. to examine the role ATVs and dirt bikes play in the crime world; and an Oklahoma man who pleads not guilty, after confessing to murdering his family.

An interview with a woman who was sexually assaulted as a teen and then threatened in a rap song. Also featured: the mysterious disappearance of a family of three; and an interview with Kanye West's cousin about the death of Kanye's mother.

A Georgia mom and preschool teacher becomes a fugitive, after fleeing her home with her child, in fear of her boyfriend. Also featured: a woman's mysterious disappearance and a smuggling operation at a busy border crossing.

A look at a man who blew up his house, killing himself and his two sons, while being investigated for his wife's disappearance. Also: a former fire chief kills his fiancé, who was a former escort.

Actor and producer Andre Bauth is accused of stabbing his roommate. Also: the disappearance of an Indiana University student is analyzed, and convicted felons who serve as volunteer firefighters are spotlighted.

A crime ring involving adult entertainers accused of drugging and scamming clients is investigated. Also: a look at a 107-year-old man shot by police in his own bed, and an arson mystery that killed an entire family.

Revisiting a case involving a psychic, who preys on the lovelorn. Also: a young Mexican immigrant disappears after moving to Utah, and Jackass (2000) star Steve-O discusses the stunt that landed him in jail.

The killer of a wealthy socialite is interviewed.

Featuring a murder in which the killer leaves behind a surprising clue; a search for new leads in New York City's Second Ave. deli murder; and a profile of Robin Williams' son, who teaches financial classes in San Quentin.

A young mother is murdered and left abandoned in her car, and a man blames his motorcycle accident on a wasp.

A New York teacher blows the whistle on a grading scandal and claims the principal is now bullying him; and a woman convinces a friend to murder her veteran husband.

A girl claims she was sexually assaulted on a cruise ship; and female bounty hunters in Los Angeles are profiled.

A woman vanishes in Costa Rica, and when police begin to zero in on her boyfriend as a suspect, he disappears as well. Also: the search for a teenage girl gets more difficult, when a rain storm washes away the evidence.

A land dispute between feuding neighbors turns deadly in Montana.

A new victim of Jerry Sandusky's comes forward; a woman, wrongly convicted of killing her son in a fire, shares her story; and the notorious "club kid" killer discusses his life in prison.

An interview with a man known as the "grid kid" killer; an examination of the dangers of texting and driving.

A man turns up dead, after meeting someone through a dating app; a woman is killed by a man wearing a mask from the movie E.T. the Extra-Terrestrial (1982); and a profile of crime author Patricia Cornwell.

A vitamin tycoon's family fights with his widow over an $800 million empire; memorabilia collectors profit from murderers' belongings; and Little Rock, Arkansas police are spotlighted.

The FBI searches for a Mormon missionary, accused of an execution-style killing of a security guard; female bounty hunters in L.A. are spotlighted; and author Patricia Cornwell is profiled.

A man tries to become a viral star by kidnapping a child and taking police on a wild chase; a girl is accused of killing her family on Christmas Eve; and Matt Doran visits the set of Chicago P.D. (2014).

A look into the dark secrets of a Fox Lake police officer and his family; the LAPD uses a sting to catch a sex offender; and a woman claims she was sexually assaulted to get out of a DUI.

A man, convicted of murdering his wife, is exonerated; a SWAT team bulldozes a home to chase down a burglary suspect.

Questions arise about a man's murder conviction 30 years ago, after a young girl's testimony helped land him in jail for her mother's murder.

A social experiment shows how easy it is to spike drinks in public spaces; a man murders his ex-girlfriend with a homemade gun; and a murderer drives across the country to confess.

A boy disappears from his school's science fair; a woman goes missing near Talladega Superspeedway; and Matt Doran visits the set of Chicago P.D. (2014).

An elderly man begins providing bloodhounds to police, in an effort to find abducted children, following the kidnapping and murder of his granddaughter.

Shopping dangers; Uber safety; and counterfeit products are spotlighted.

A Jane Doe is identified 33 years after her death and authorities search for her killer; and a man known as "The Zombie Killer" is connected to more crimes in Phoenix.

A kindergarten teacher is falsely accused of molesting children; and a cop covers up his wife's murder.

A young girl is abducted by her family's killer; and a lottery scammer is accused of more crimes.

A young woman and her stepson are killed in broad daylight; and a man orders a hit on his wife.

Former prosecutor and TV judge Jeanine Pirro discusses her book about murderer Robert Durst; and a man tries to clear his name, after his wife dies under mysterious circumstances.

A wealthy woman is murdered and her husband goes on the run. Also: an eviction leads to a murder.

Newborns are taken from their mothers, due to a controversial law; and a woman disappears, while on a cruise.

A man's conviction may be reversed, when a witness recants her story, after appearing on Crime Watch Daily (2015).

A hated couple are accused of murdering a young woman. Also: police come under suspicion, when a suspect falls overboard and dies while in their custody.

Ten women go missing along New York's Gilgo beach and are later found dead and one of the suspects is confronted. Also: the process hackers use to take over android phones is examined.

A teacher is accused of sleeping with a student. Also: a beautiful college student goes missing and evidence points to her stepfather.

A soap opera super-fan kills a pen pal; accused rapists fight for rape kits to be tested.

A stoned security guard kills an unarmed man; a highway patrol officer, a new mother, is killed by an intoxicated retired Army Colonel.

A mom searches for her missing son; and an entrepreneur is accused of bilking investors, over taco-shaped fortune cookies.

A kid shoots his parents, after they forbid him from playing video game Halo; and scuba divers' grizzly discovery reignites a case of a murdered mom.

Featuring interviews with a woman convicted of killing two of her children; the man known as the "Grid Kid" killer; and a former correctional officer who was jailed for having inappropriate relations with an inmate.

A military wife and mother suddenly disappears; a beautiful, successful real estate agent is killed; and a 19-year-old college student vanishes.

Chelsea Cullen, a preschool teacher, becomes a fugitive after fleeing her home with her child, in fear of her boyfriend. Also spotlighted: Harold "Butch" Knight, one of Michigan's most wanted men; a former cop who is accused of murder; and a child molester on the 15 most wanted fugitives list.

An interview with the killer of a wealthy socialite in Aspen, Colorado.

Two sisters, saved by a police officer when their home is broken into, are reunited with their hero. Also: Matt Doran reports on a group of bikers who volunteer their time to help wounded children; and a grandfather provides bloodhounds to police to help find abducted children.

A yoga store murder rocks a Maryland town; a woman goes missing and her ex-fiancé is the prime suspect; and a young boy's murder is examined.

A former Georgia judge tries to frame a woman for sexual harassment; an update on a woman who was involved in a ring of entertainers that drugged and scammed clients; and a traveling evangelist is convicted of video voyeurism.

A licensed physician and Pentecostal preacher is accused of selling fake cancer treatments to patients; an oil tycoon and alleged Ponzi scheme mastermind is spotlighted; and virtual kidnappings are examined.

A look back at some of the show's best takedowns by correspondents.