Motives & Murders

Motives & Murders

2012 - 2015, Crime, True Life, Other
Investigators reveal untold stories of how they caught notorious murderers.
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Episode Guide

  • Motives & Murders - Three Times the Pain (Season 4 Episode 13)
    Season 4 Episode 13:

    Three Times the Pain

    A college student is stabbed to death while working the nightshift at a convenience store, and her murder goes unsolved for 10 years until an informant steps forward.

  • Motives & Murders - When the Smoke Clears (Season 4 Episode 12)
    Season 4 Episode 12:

    When the Smoke Clears

    Washington authorities are stunned when a mother of three dies from cyanide poisoning, and their murder investigation uncovers a pattern of tampering with boxes and blister packs.

  • Motives & Murders - Who Do You Trust? (Season 4 Episode 11)
    Season 4 Episode 11:

    Who Do You Trust?

    After the mutilated body of 17-year-old Shauna Card is discovered on the bathroom floor in her Orlando, Fla., home, it will take years for investigators to finally crack the case.

  • Motives & Murders - A Chance Encounter (Season 4 Episode 10)
    Season 4 Episode 10:

    A Chance Encounter

    When a 20-year-old woman is gunned down in a Maryland suburb, the case goes cold with few leads and almost no evidence, and it will take 25 years before investigators finally close in on the killer.

  • Motives & Murders - The Ballad of Melissa Love (Season 4 Episode 9)
    Season 4 Episode 9:

    The Ballad of Melissa Love

    After recording her first album, country singer Melissa Haferman is murdered and her body is dumped in a vacant lot near a bus depot in Louisville, Ky.

  • Motives & Murders - Texas Massacre (Season 4 Episode 8)
    Season 4 Episode 8:

    Texas Massacre

    In Kilgore, Texas, the residents are reeling from the execution-style slaying of five people abducted from a fast-food restaurant, and it will take several decades before the perpetrators are brought to justice.

  • Motives & Murders - Have You Seen Our Sister? (Season 4 Episode 7)
    Season 4 Episode 7:

    Have You Seen Our Sister?

    A TV celebrity leads a major media campaign after a hardworking single mother is murdered in a Michigan town where violent crimes are nearly four times the national average.

    Thursday 18th February 1:00pm EST - Investigation Discovery

  • Motives & Murders - Highway to Hell (Season 4 Episode 6)
    Season 4 Episode 6:

    Highway to Hell

    Police from three different states join the hunt for a serial rapist and murderer, known as the I-5 Killer, who is terrorizing communities along Interstate 5 on the West Coast.

  • Motives & Murders - Where Murders Go Unsolved (Season 4 Episode 5)
    Season 4 Episode 5:

    Where Murders Go Unsolved

    The rape and murder of a 19-year-old journalism student in her bed is the latest in a string of unsolved homicides in a college town.

    Thursday 18th February 12:00pm EST - Investigation Discovery

  • Motives & Murders - Who Took Polly Klaas? (Season 4 Episode 4)
    Season 4 Episode 4:

    Who Took Polly Klaas?

    During a slumber party, a man appears at 12-year-old Polly Klaas's bedroom door and abducts her at knife point.

    Thursday 18th February 11:00am EST - Investigation Discovery

  • Motives & Murders - If Dogs Could Talk (Season 4 Episode 3)
    Season 4 Episode 3:

    If Dogs Could Talk

    Three blood-soaked dogs are the only witnesses to the brutal murder of Cathy Lamb in her Palm Beach, Fla., home, leaving detectives baffled by the gruesome crime scene.

  • Motives & Murders - What Happened in Vegas? (Season 4 Episode 2)
    Season 4 Episode 2:

    What Happened in Vegas?

    Single mother Donna Kitowski heads to a Las Vegas supermarket late at night but never returns home, and soon the local TV news is reporting on a woman's near-lifeless body found in the desert..

  • Motives & Murders - Identifying Remains (Season 4 Episode 1)
    Season 4 Episode 1:

    Identifying Remains

    Investigators must determine the identity of a murder victim whose skull was found on a highway in Florida.

  • Motives & Murders - Into Thin Air (Season 3 Episode 10)
    Season 3 Episode 10:

    Into Thin Air

    Recounting a case surrounding the disappearance of a glamorous flight attendant. A lack of clues left detectives baffled, until a graveside discovery forced them to take a second look at some familiar faces

  • Motives & Murders - Bad for Business (Season 3 Episode 9)
    Season 3 Episode 9:

    Bad for Business

    The case of Kathleen Smith, who was bludgeoned to death and set on fire in her Arizona home in October 1984. Detectives had two suspects, but no hard evidence to tie either of them to the attack. Fifteen years after the 20-year-old's murder, a tip-off from a notorious killer reopened the investigation

  • Motives & Murders - Bad Things Happen to Good People (Season 3 Episode 8)
    Season 3 Episode 8:

    Bad Things Happen to Good People

    The case of 33-year-old Bob Henry, who was shot dead in broad daylight outside the Tacoma, Washington warehouse where he worked in September 1995. The execution-style murder looked like a professional hit, and the investigators' first quest was finding the weapon used

  • Motives & Murders - No Reason to Die (Season 3 Episode 7)
    Season 3 Episode 7:

    No Reason to Die

    The murders of John and Nancy Bosco, shot at close range in their Montana home in August 1993. With few clues, the investigation to find the assassin soon stalled so John's mother eventually turned to an unorthodox source for help

  • Motives & Murders - A Secret Life (Season 3 Episode 6)
    Season 3 Episode 6:

    A Secret Life

    A pillar of the Haitian community in Spring Valley, New York, is gunned down in his driveway, and the suspects include the victim's wealthy yet terminally ill second wife, his alleged mistress, and her gun-toting ex-husband

  • Motives & Murders - An Orphan's Ordeal (Season 3 Episode 5)
    Season 3 Episode 5:

    An Orphan's Ordeal

    The case of 18-year-old Amy Roman, who was murdered in her Boston apartment in May 1990. Though police believed the young mother knew her assailant, the trail went cold, prompting her relatives into launching an investigation of their own. Fifteen years later, an arrest was made

    Wednesday 10th February 5:00am EST - Investigation Discovery

  • Motives & Murders - Before He Kills Again (Season 3 Episode 4)
    Season 3 Episode 4:

    Before He Kills Again

    The discovery of several women's bodies alongside the road near Tampa, Florida, prompting detectives to fear a serial killer was on the loose

  • Motives & Murders - Nightmares in Babysitting (Season 3 Episode 3)
    Season 3 Episode 3:

    Nightmares in Babysitting

    Babysitter Karen Slattery is brutally stabbed and raped while babysitting in Southern Florida's Delray Beach. Case cold until a similar crimes terrorises in nearby Boca Raton.

  • Motives & Murders - One Stormy Night (Season 3 Episode 2)
    Season 3 Episode 2:

    One Stormy Night

    The murders of Mike MacIvor and his heavily pregnant wife Missy, who were strangled to death in their Florida Keys home in August 1991. Suspicions about drug smuggling and a tip about a business deal gone wrong directed detectives to Belize, but for a while the case made little progress. However, investigators later took a new approach that led them straight to the killer

  • Motives & Murders - Murder at the Met (Season 3 Episode 1)
    Season 3 Episode 1:

    Murder at the Met

    Documentary revealing the untold stories of how investigators caught notorious murderers. The first case is that of violinist Helen Hagnes, whose body was discovered at New York's Metropolitan Opera House in 1980

  • Motives & Murders - Not Forgotten (Season 2 Episode 18)
    Season 2 Episode 18:

    Not Forgotten

    A body is discovered in an apartment fire; police catch the killer with blood found in the kitchen.

  • Motives & Murders - Northern Nightmare (Season 2 Episode 17)
    Season 2 Episode 17:

    Northern Nightmare

    A nurse vanishes from her house and only her car is found.

  • Motives & Murders - Kansas Killer (Season 2 Episode 16)
    Season 2 Episode 16:

    Kansas Killer

    Mother and grandmother, Edna Walton, is found dead in her home.

  • Motives & Murders - Murder at the Farmhouse (Season 2 Episode 15)
    Season 2 Episode 15:

    Murder at the Farmhouse

    A dairy farmer and his wife are found dead in the living room of their home.

  • Motives & Murders - The Face of Justice (Season 2 Episode 14)
    Season 2 Episode 14:

    The Face of Justice

    After children find body parts in garbage bags, detectives employ a forensic anthropologist and cutting-edge technology in order to solve this grisly murder.

  • Motives & Murders - Never a Doubt (Season 2 Episode 13)
    Season 2 Episode 13:

    Never a Doubt

    A woman is certain that her husband was wrongly convicted of killing her mother and starts an investigation of her own.

  • Motives & Murders - Ring of Deceit (Season 2 Episode 12)
    Season 2 Episode 12:

    Ring of Deceit

    A woman vanishes on her way to the airport; her body is found two weeks later in the trunk of her car.

  • Motives & Murders - Death Knocks (Season 2 Episode 11)
    Season 2 Episode 11:

    Death Knocks

    In a tranquil Austin, Texas, neighborhood, a woman shows her high-end home to a killer posing as a prospective buyer.

  • Motives & Murders - Crossed Dressed to Kill (Season 2 Episode 10)
    Season 2 Episode 10:

    Crossed Dressed to Kill

    Detectives discuss their hunt for a murderer, rapist and master of disguises, who dressed up in ladies' clothes in order to get into women's homes.

  • Motives & Murders - Wicked in the Windy City (Season 2 Episode 9)
    Season 2 Episode 9:

    Wicked in the Windy City

    The murder of 29-year-old Renee Rondeau, who was found strangled in the bathroom of her Lakeview apartment the day after Halloween in 1994. Three years later, Andre Griggs and Benita Johnson were convicted of the crime

    Wednesday 10th February 3:00am EST - Investigation Discovery

  • Motives & Murders - He Came for Me (Season 2 Episode 8)
    Season 2 Episode 8:

    He Came for Me

    Detectives reveal how DNA evidence led them to 15-year-old Nanine Grimes' killer, a quarter of a century after she was stabbed more than 80 times in her Adams County home in September 1980

  • Motives & Murders - Dying to Fit In (Season 2 Episode 7)
    Season 2 Episode 7:

    Dying to Fit In

    Detectives investigate the murder of two women in Minnesota. The evidence points to a serial killer, but they wonder whether the deaths are linked or just a sinister coincidence

  • Motives & Murders - Not Again (Season 2 Episode 6)
    Season 2 Episode 6:

    Not Again

    Detectives hunt for the murderer of a 30-year-old mother. However, even when they think they've found their killer, they face a frustrating search for evidence.

    Wednesday 10th February 4:00am EST - Investigation Discovery

  • Motives & Murders - Queen of Hearts (Season 2 Episode 5)
    Season 2 Episode 5:

    Queen of Hearts

    Using a novel technique involving a deck of cards, detectives crack a 32-year-old cold case, finally bringing an assassin to justice.

  • Motives & Murders - The Body in the Bay (Season 2 Episode 4)
    Season 2 Episode 4:

    The Body in the Bay

    Examining the case of Nancy Manni, whose body was found in Chesapeake Bay, which straddles the US states of Maryland and Virginia, in 1993. Four years later her case appeared on a TV crime series with the police no nearer to tracking her killer

  • Motives & Murders - Relative Suspects (Season 2 Episode 3)
    Season 2 Episode 3:

    Relative Suspects

    Barbara Lloyd is stabbed to death in her home while her children are sleeping

  • Motives & Murders - Web of Lies (Season 2 Episode 2)
    Season 2 Episode 2:

    Web of Lies

    Investigators reveal how they unravelled a business manager's endless string of lies in order to discover who had the means and motive to shoot him dead.

  • Motives & Murders - In Harm's Way (Season 2 Episode 1)
    Season 2 Episode 1:

    In Harm's Way

    Investigators reveal untold stories of how they caught notorious murderers, beginning with the struggle to trace the killer of a 42-year-old woman.

  • Motives & Murders - A Killer Family (Season 1 Episode 16)
    Season 1 Episode 16:

    A Killer Family

    A retired real estate agent is bludgeoned to death in his garage and detectives suspect foul play.

  • Motives & Murders - Murder at the Roadhouse (Season 1 Episode 15)
    Season 1 Episode 15:

    Murder at the Roadhouse

    An unlikely witness, a dog tag, and some unusual bruises lead police to the killer of a man pummeled to death in a pub.

  • Motives & Murders - On the Trail of a Hitman (Season 1 Episode 14)
    Season 1 Episode 14:

    On the Trail of a Hitman

    A Vancouver man is shot on his doorstep; other local murders appear to be connected.

  • Motives & Murders - A Fatal Fare (Season 1 Episode 13)
    Season 1 Episode 13:

    A Fatal Fare

    A cab driver is murdered, mutilated, and dumped in a parking lot; days later another body sends police looking into 'the case of a lifetime.'

  • Motives & Murders - Severed (Season 1 Episode 12)
    Season 1 Episode 12:


    While digging in a dumpster, a homeless man makes the gruesome discovery of a human arm; after a second arm is found at the scene, the hunt is on for a killer - and the rest of the body.

  • Motives & Murders - Deadly Deception (Season 1 Episode 11)
    Season 1 Episode 11:

    Deadly Deception

    An active senior disappears and a strange man is found at his home claiming to be there to check on the plants.

  • Motives & Murders - Free to Kill (Season 1 Episode 10)
    Season 1 Episode 10:

    Free to Kill

    A mother leaves for a weekend and is never seen again; a detective goes undercover to find the killer.

  • Motives & Murders - The Pathway Predator (Season 1 Episode 9)
    Season 1 Episode 9:

    The Pathway Predator

    A young woman goes for a ride and her body is found by a river; two more assaults and a fatal mistake lead to the killer.

  • Motives & Murders - Deadly Snow (Season 1 Episode 8)
    Season 1 Episode 8:

    Deadly Snow

    While searching for a missing realtor and his wife, police make a grisly discovery inside the trunk of a car - their bodies; a nationwide hunt for the killer ensues.

  • Motives & Murders - Cabbie Killer (Season 1 Episode 7)
    Season 1 Episode 7:

    Cabbie Killer

    The murder of two taxi drivers over a two day period stuns the city of Austin, Texas; many years later a critical piece of evidence cracks the case.

  • Motives & Murders - A Race Against Time (Season 1 Episode 6)
    Season 1 Episode 6:

    A Race Against Time

    A well-liked teenager is found dead at a nearby school, but the case goes cold; years later a stabbing hundreds of miles away finally cracks the case.

  • Motives & Murders - Body in a Bag (Season 1 Episode 5)
    Season 1 Episode 5:

    Body in a Bag

    A body found in a cement quarry has the signs of a mob hit, but as detectives look into the case, they discover a far stranger truth.

  • Motives & Murders - Toxic Love (Season 1 Episode 4)
    Season 1 Episode 4:

    Toxic Love

    When a woman's two husbands die of the same illness, investigators suspect the wife may be a coldblooded killer.

  • Motives & Murders - Railway Killer (Season 1 Episode 3)
    Season 1 Episode 3:

    Railway Killer

    A man's body is found near train tracks and his girlfriend is missing; while searching for the killer and the missing girl, investigators land in the world of freight train riders and serial killers.

  • Motives & Murders - A Deadly Turn (Season 1 Episode 2)
    Season 1 Episode 2:

    A Deadly Turn

    An Orange County woman is shot in broad daylight; the case goes cold until a similar shooting takes place and a startling link is revealed.

  • Motives & Murders - Poisoned Heart (Season 1 Episode 1)
    Season 1 Episode 1:

    Poisoned Heart

    A woman and her sons are rushed to the hospital complaining of extreme pain and nausea and test positive for a rare and deadly poison.

  • Motives & Murders - An Orphan's Ordeal (Episode 45)
    Episode 45:

    An Orphan's Ordeal

    Amy Roman was found dead in her apartment; her family takes action when the case goes cold.

  • Motives & Murders - Web of Lies (Episode 2)
    Episode 2:

    Web of Lies

    Employees at a security company receive a puzzling call from their boss; they learn that he has been shot and died.

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