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All Seasons

Season 1

  • S01E01 Jeffrey Dahmer

    • August 20, 2010
    • Investigation Discovery

    Jeffrey Dahmer murdered 17 men and boys – many of whom were of African or Asian descent – between 1978 and 1991.

  • S01E02 Myra Hindley

    • August 27, 2010
    • Investigation Discovery

    Crimes committed by Hindley and her lover, Ian Brady, shocked the nation.

  • S01E03 The Washington Sniper

    • September 10, 2010
    • Investigation Discovery

    Profiling John Allen Muhammad and John Lee Malvo, the men behind the 2002 'Washington Sniper' shootings. John Allen Mohammed, 42, a veteran of the Gulf War in 1991, and his stepson John Lee Malvo, 17 were convicted in 2004 of being the “Washington Sniper”, who had been terrorizing America over a period of three weeks.

  • S01E04 Harold Shipman

    • September 17, 2010
    • Investigation Discovery

    The world’s most prolific killer, Harold Shipman is estimated to have killed 275 people. When the police began investigating, they struggled to understand him. How could a doctor who was trusted and respected by more than 3000 patients also be a killer?

  • S01E05 Ivan Milat

    • September 24, 2010
    • Investigation Discovery

    Between 1989 and 1992 seven hitching backpackers were murdered by ``The Back Pack Killer'' Ivan Milat.

  • S01E06 Fred West

    • Investigation Discovery

    Over twenty years a couple tortured, raped and murdered an unknown number of girls.

Season 2

  • S02E01 Ted Bundy

    • January 7, 2011
    • Investigation Discovery

    Ted Bundy orchestrated a campaign of terror that stretched across the US luring pretty dark haired women to gruesome deaths.

  • S02E02 Vampire of Sacramento

    • January 14, 2011
    • Investigation Discovery

    Richard Trenton Chase was deemed a deranged monster for slaughtering men, women and children in a bloody rampage.

  • S02E03 The Killer Clown

    • January 21, 2011
    • Investigation Discovery

    John Wayne Gacy buried his male victims under his crawl space of his home.

  • S02E04 Aileen Wuornos

    • January 28, 2011
    • Investigation Discovery

    Prostitute Aileen Wuornos lured her clients into remote wooded areas and shot them at point blank range.

  • S02E05 Charles Starkweather

    • February 4, 2011
    • Investigation Discovery

    In 1958 Charles Starkweather and his teenage girlfriend embarked on an 8-day killing spree.

  • S02E06 The Boston Strangler

    • February 11, 2011
    • Investigation Discovery

    Some doubt the authenticity of serial killer De Salvo aka Boston Strangler who claimed the lives of at least 13 victims.

Season 3

  • S03E01 The Night Stalker

    • September 23, 2011
    • Investigation Discovery

    Man sleeping in cemeteries spreads terror throughout Los Angeles breaking into homes.

  • S03E02 The Meanest Man in America

    • September 30, 2011
    • Investigation Discovery

    Man is biggest mass murderer when police discovered his private graveyard of more than 100 kills and he didn't stop once imprisoned.

  • S03E03 The Son of Sam

    • October 7, 2011
    • Investigation Discovery

    Man claims he was instructed by the devil to murder and maim 13 innocent victims.

  • S03E04 The Co-ed Butcher

    • October 14, 2011
    • Investigation Discovery

    A man murdered grandparents, then went on to kill college girls before he turned on his mother and her friend -- all under the noses of cops that he befriended.

  • S03E05 The Silent Savage

    • October 21, 2011
    • Investigation Discovery

    The British Jeffrey Dahmer killed at least 15 men and boys in London.

  • S03E06 The Green River Killer

    • October 28, 2011
    • Investigation Discovery

    A man goes on a killing spree in Seattle that baffles police for 19 years until DNA finally solves the case.

Season 4

  • S04E01 The Devil's Business

    • September 11, 2012
    • Investigation Discovery

    Charles Manson and his so-called 'family' would become the most infamous killers of the 20th Century. Their series of brutal and seemingly senseless crimes would shock the world. But how did so many young people fall under the spell of one man?

  • S04E02 Most Likely to Succeed

    • September 18, 2012
    • Investigation Discovery

    Herbert Mullin had murdered 13 men, women and children by the age of 25.

  • S04E03 Angel of Death

    • September 25, 2012
    • Investigation Discovery

    Recalling the case of an English nurse who was convicted of murdering four children and attacking nine others. Thirteen children are attacked by nurse Beverly Allitt.

  • S04E04 The Gay Slayer

    • October 2, 2012
    • Investigation Discovery

    In 1993 Colin Ireland stated that he is going to become a serial killer.

  • S04E05 Twisted Fantasies

    • October 9, 2012
    • Investigation Discovery

    A family of four is brutally murdered in their Kansas home. This tragedy is the beginning of a terrible killing spree.

  • S04E06 The Deadly Duo

    • October 16, 2012
    • Investigation Discovery

    In the late seventies two serial killers murder women in Los Angeles.

Season 5

  • S05E01 The Other Brother

    • September 2, 2013
    • Investigation Discovery

    Shock waves ripped through paradise when a series of crimes was committed by an unlikely killer.

  • S05E02 The Blood Brothers

    • September 9, 2013
    • Investigation Discovery

    In 1979 Richmond was plagued by a violent and unpredictable crime spree. The perpetrators were a gang for whom violence ran in the family - so cunning that even death row couldn’t hold them.

  • S05E03 The Cross-Dressing Cannibal

    • September 16, 2013
    • Investigation Discovery

    Hadden Clark, a cross dressing killer with an appetite for revenge and an unpredictable temper strikes in Maryland.

  • S05E04 The School Girl Killers

    • September 23, 2013
    • Investigation Discovery

    A couple who appeared to be in love, were far from a match made in heaven.

  • S05E05 The Killer Prophet

    • September 30, 2013
    • Investigation Discovery

    Halloween 1970; the discovery of 5 bodies in a pool along with a note referencing the occult and an environmental world war 3, John Linley Frazier is profiled.

  • S05E06 The Black Panther

    • October 7, 2013
    • Investigation Discovery

    Obsessed with reliving his Army days, Donald Neilson plans crimes with military precision.

  • S05E07 The Hitch Hike Hunter

    • October 14, 2013
    • Investigation Discovery

    Women and hitchhikers randomly murdered in the once carefree college town of Isla Vista. Thor Nis Christiansen is profiled.

  • S05E08 The Dark Marksmen

    • October 21, 2013
    • Investigation Discovery

    In 2005, spree of shootings in Phoenix had residents too scared to leave their homes. Dale Shawn Hausner and Samuel John Dieteman are profiled.

  • S05E09 The Gravedigger

    • October 28, 2013
    • Investigation Discovery

    A former gravedigger terrorizing North England evades the police for years. Peter Sutcliffe os profiled.

  • S05E10 The Speed Freaks

    • November 4, 2013
    • Investigation Discovery

    Two childhood friends would start on a drug fueled killing spree that would span fifteen years.

  • S05E11 The Psychopath

    • November 11, 2013
    • Investigation Discovery

    London faces strange murders in the 1970's; the main suspect is an unstable young man.

  • S05E12 The Sunset Slayers

    • November 18, 2013
    • Investigation Discovery

    Two hunters find prey at night during 1980 on Sunset Strip. Doug Clark and Carol Bundy are profiled.

Season 6

  • S06E01 Sex Slave Killers

    • September 15, 2014
    • Investigation Discovery

    The love affair between Gerald and Charlene Gallego resulted in a trail of merciless rapes and murders across 3 states from 1978 -1980.

  • S06E02 Cape Cod Casanova

    • September 22, 2014
    • Investigation Discovery

    In Cape Cod, Mass., carpenter Tony Costa gains infamy as a serial killer who dismembered his victims.

  • S06E03 Red Light Regular

    • September 29, 2014
    • Investigation Discovery

    During the 1970s, Richard Cottingham gained notoriety after being known as the 'torso killer' as he dismembered his victims.

  • S06E04 Prince of Darkness

    • October 6, 2014
    • Investigation Discovery

    In 1990, a San Diego neighborhood is gripped with fear when six women are stabbed to death in their homes.

  • S06E05 Map to Murder

    • October 13, 2014
    • Investigation Discovery

    A nation is left in shock when they learn of Robert Napper's savage murders in London.

  • S06E06 Bus Stop Killer

    • October 23, 2014
    • Investigation Discovery

    ‘The Bus Stop Killer’ Levi Bellfield targeted women using public transport in London and the surrounding areas, killing three females. And he is suspected of many more attacks.

  • S06E07 Dead End in Baton Rouge

    • October 31, 2014
    • Investigation Discovery

    In Louisiana, serial killer Sean Gillis kidnaps, rapes, kills, and dismembers eight women.

Season 7

  • S07E01 Killer Cousins

    • March 12, 2015
    • Investigation Discovery

    In Vero Beach, Fla., David Alan Gore and his cousin, Fred Waterfield, rape and murder six young women.

  • S07E02 Twisted Tourniquet

    • March 19, 2015
    • Investigation Discovery

    In Richmond, Va., women are told to nail their windows shut in order to protect themselves from Timothy Spencer, the Southside Strangler, who climbs in through his victims' windows.

  • S07E03 Trail of Fears

    • March 26, 2015
    • Investigation Discovery

    In the early 1980s, serial killer David Carpenter stalks, rapes and murders women on hiking trails in California state parks.

  • S07E04 Tampa Bay Slayer

    • May 1, 2015
    • Investigation Discovery

    In Florida, serial killer Bobby Joe Long claims he raped more than 50 women before his arrest in 1984.

  • S07E05 Railway Killers

    • May 8, 2015
    • Investigation Discovery

    Childhood friends John Duffy and David Mulcahy share many hobbies, but their common interests take a dark turn as they grow older resulting in numerous rapes and murders committed in the 1980s.

  • S07E06 Charmed to death

    • September 3, 2018
    • Investigation Discovery

Season 8

  • S08E01 Murder Mates

    • November 10, 2018
    • Investigation Discovery

    In 1984, a couple goes on a killing spree throughout the Midwest; after claiming eight victims, the pair must decide if they'll keep killing or surrender to the police; their mindless violence leaves the region shocked and appalled.

  • S08E02 The Killer Next Door

    • November 17, 2018
    • Investigation Discovery

    The Bike Path Rapist terrorizes the city of Buffalo, N.Y., for three decades, during which time no one realizes he's living the life of a pillar of the community; detectives work tirelessly to unmask the killer next door.

  • S08E03 The Cannibal Killer

    • September 3, 2018
    • Investigation Discovery

  • S08E04 My Pleasure, My Poison

    • September 3, 2018
    • Investigation Discovery

  • S08E05 She Kills for Thrills

    • September 3, 2018
    • Investigation Discovery