Some of the world’s most notorious murders are the subject of “It Takes a Killer,” which investigates the crimes from the perspective of the killers, trying to get inside their minds and determine their motives. Leading homicide investigators and experts from such agencies as the FBI and Scotland Yard take a look at the evidence pulled from crime scenes and profile the killer’s behavior to try to piece together the details of each murder, explaining when, why and how each criminal committed the crime. For the wannabe detectives watching the show, the experts also reveal how the crime was solved — which often requires authorities to think like a killer.
| Title | Air Date | Duration | ||
|---|---|---|---|---|
| Season 1 | Episode 1 | The Craigslist Killer | 2016-08-07 | 30 min |
| Season 1 | Episode 2 | Intern Gone Missing | 2016-08-07 | 30 min |
| Season 1 | Episode 3 | Jodi Arias | 2016-08-14 | 30 min |
| Season 1 | Episode 4 | A Treacherous Triangle | 2016-08-14 | 30 min |
| Season 1 | Episode 5 | Phil Spector | 2016-08-21 | 30 min |
| Season 1 | Episode 6 | Deaths in the Family | 2016-08-21 | 30 min |
| Season 1 | Episode 7 | Bind, Torture, Kill | 2016-08-28 | 30 min |
| Season 1 | Episode 8 | The Ghost of Baton Rouge | 2016-08-28 | 30 min |
| Season 1 | Episode 9 | Stephanie Lazarus | 2016-09-02 | 30 min |
| Season 1 | Episode 10 | The Casanova Killer | 2016-09-02 | 30 min |
| Season 1 | Episode 11 | The Green River Killer | 2016-09-09 | 30 min |
| Season 1 | Episode 12 | A Wife Goes Missing | 2016-09-09 | 30 min |
| Season 1 | Episode 13 | A Stalker Strikes | 2016-09-16 | 30 min |
| Season 1 | Episode 14 | The Mutilator of Baton Rouge | 2016-09-16 | 30 min |
| Season 1 | Episode 15 | The Vampire Teens | 2016-09-23 | 30 min |
| Season 1 | Episode 16 | The Preacher, His Mistress, and Murder | 2016-09-23 | 30 min |
| Season 1 | Episode 17 | Oscar Pistorius | 2016-09-30 | 30 min |
| Season 1 | Episode 18 | The Sadist of San Luis Obispo | 2016-09-30 | 30 min |
| Season 1 | Episode 19 | The Gainesville Ripper | 2016-10-07 | 30 min |
| Season 1 | Episode 20 | The Con Artist Killers | 2016-10-14 | 30 min |
| Season 1 | Episode 21 | A Woman Scorned | 2016-10-21 | 30 min |
| Season 1 | Episode 22 | The Fast Food Killer | 2016-10-28 | 30 min |
| Season 1 | Episode 23 | Murder for Millions | 2016-11-04 | 30 min |
| Season 1 | Episode 24 | Author of Death | 2016-11-11 | 30 min |
| Season 1 | Episode 25 | A Son Snaps | 2016-11-18 | 30 min |
| Season 1 | Episode 26 | Trailer Park Tragedy | 2016-11-25 | 30 min |
| Season 1 | Episode 27 | Of Muscles and Murder | 2016-12-02 | 30 min |
| Season 1 | Episode 28 | The Happy Face Killer | 2016-12-16 | 30 min |
| Season 1 | Episode 29 | Partners in Evil | 2016-12-23 | 30 min |
| Season 1 | Episode 30 | The Venomous Veterinarian | 2016-12-30 | 30 min |
| Season 1 | Episode 31 | In Search of a Kill | 2017-01-06 | 30 min |
| Season 1 | Episode 32 | Terror on the Strip | 2017-01-13 | 30 min |
| Season 1 | Episode 33 | Master Bob | 2017-01-20 | 30 min |
| Season 1 | Episode 34 | The House of Horrors | 2017-01-27 | 30 min |
| Season 1 | Episode 35 | A Wolf in Woman's Clothing | 2017-02-03 | 30 min |
| Season 1 | Episode 36 | Murderous Miranda | 2017-02-10 | 30 min |
| Season 1 | Episode 37 | The Slavemaster | 2017-02-17 | 30 min |
| Season 1 | Episode 38 | An Opportunity to Kill | 2017-02-24 | 30 min |
| Season 1 | Episode 39 | Doctor Death | 2017-03-03 | 30 min |
| Season 1 | Episode 40 | The Jigsaw Man | 2017-03-10 | 30 min |
| Season 1 | Episode 41 | Fit to Kill | 2017-03-17 | 30 min |
| Season 1 | Episode 42 | Redneck Retribution | 2017-03-24 | 30 min |
| Season 1 | Episode 43 | Seduced to Death | 2017-03-31 | 30 min |
| Season 1 | Episode 44 | The Toy Box | 2017-04-07 | 30 min |
| Season 1 | Episode 45 | The Acid Lady | 2017-04-14 | 30 min |
| Season 1 | Episode 46 | Killer Cabbie | 2017-04-21 | 30 min |
| Season 1 | Episode 47 | A Random Rampage | 2017-04-28 | 30 min |
| Season 1 | Episode 48 | The Devil Next Door | 2017-05-05 | 30 min |
| Season 1 | Episode 49 | Enforcer of Death | 2017-05-12 | 30 min |
| Season 1 | Episode 50 | The Keyes to Murder | 2017-05-19 | 30 min |
| Season 1 | Episode 51 | If the Walls Could Talk | 2017-05-26 | 30 min |
| Season 1 | Episode 52 | Homicide in the High Desert | 2017-06-02 | 30 min |
| Season 1 | Episode 53 | Bonded in Murder | 2017-06-09 | 30 min |
| Season 1 | Episode 54 | Of Vengeance & Murder | 2017-06-16 | 30 min |
| Season 1 | Episode 55 | The Honeybee Killer | 2017-06-23 | 30 min |
| Season 1 | Episode 56 | The Bad Son | 2017-06-26 | 30 min |
| Season 1 | Episode 57 | Fred Neulander-Killer Rabbi | 2017-07-03 | 30 min |
| Season 1 | Episode 58 | Murderous Ambition | 2017-07-10 | 30 min |
| Season 1 | Episode 59 | Spoiled, Rotten & Ruthless | 2017-07-17 | 30 min |
| Season 1 | Episode 60 | A Split Personality | 2017-07-31 | 30 min |
| Season 1 | Episode 61 | The Poughkeepsie Predator | 2017-08-07 | 30 min |
| Season 1 | Episode 62 | What Happened to Jana? | 2017-08-14 | 30 min |
| Season 1 | Episode 63 | The Grim Sleeper | 2017-08-21 | 30 min |
| Season 1 | Episode 64 | Dreaming of Murder | 2017-08-28 | 30 min |
| Season 1 | Episode 65 | Bodyparts in My Pocket | 2017-09-04 | 30 min |
| Season 1 | Episode 66 | Menace to Society | 2017-09-11 | 30 min |
| Season 1 | Episode 67 | The Burial He Wanted | 2017-09-18 | 30 min |
| Season 1 | Episode 68 | The Green Widow | 2017-09-25 | 30 min |
| Season 1 | Episode 69 | The Snitch Who Kills | 2017-10-09 | 30 min |
| Season 1 | Episode 70 | Blood Thicker Than Marriage | 2017-10-16 | 30 min |
| Season 1 | Episode 71 | Too Late to Say Sorry | 2017-10-23 | 30 min |
| Season 1 | Episode 72 | Mad Maksim | 2017-10-30 | 30 min |
| Season 1 | Episode 73 | The Clear Lake Murders | 2017-11-06 | 30 min |
| Season 1 | Episode 74 | Cheat, Kill, Deny | 2017-11-13 | 30 min |
| Season 1 | Episode 75 | Down in Flames | 2017-11-20 | 30 min |
| Season 1 | Episode 76 | Brothers in Arms/Menendez Brothers | 2017-11-27 | 30 min |
| Season 1 | Episode 77 | They'll Never Find Her Body | 2017-12-04 | 30 min |
| Season 1 | Episode 78 | Mother Knows Death | 2017-12-11 | 30 min |
| Season 1 | Episode 79 | Rage & Anger | 2017-12-18 | 30 min |
| Season 1 | Episode 80 | A Preference for Poison | 2018-01-01 | 30 min |
| Season 1 | Episode 81 | Mrs. Wrong | 2018-01-01 | 30 min |
| Season 1 | Episode 82 | Blood on the Chef's Apron | 2018-01-08 | 30 min |
| Season 1 | Episode 83 | Process of Elimination | 2018-01-15 | 30 min |
| Season 1 | Episode 85 | Of Disbelief & Death | 2018-01-22 | 30 min |
| Season 1 | Episode 86 | Lethal Payback | 2018-01-29 | 30 min |
| Season 1 | Episode 87 | The Son of Sam | 2018-02-05 | 30 min |
| Season 1 | Episode 88 | A Coldblooded Cover Up | 2018-02-12 | 30 min |
| Season 1 | Episode 89 | An Axe to Grind | 2018-02-19 | 30 min |
| Season 1 | Episode 90 | Six Degrees of Serial Murder | 2018-02-26 | 30 min |
| Season 1 | Episode 91 | Fatal Secrets | 2018-03-05 | 30 min |
| Season 1 | Episode 92 | Killer Handyman | 2018-03-19 | 30 min |
| Season 1 | Episode 93 | Rhode Island Ripper | 2018-03-19 | 30 min |
| Season 1 | Episode 94 | Cleveland Killer | 2018-03-26 | 30 min |
| Season 1 | Episode 95 | New Orleans Massacre | 2018-04-02 | 30 min |
| Season 1 | Episode 96 | The Missing Pendant | 2018-04-09 | 30 min |
| Season 1 | Episode 97 | The Informant | 2018-04-16 | 30 min |
| Season 1 | Episode 98 | Bayou Strangler | 2018-04-23 | 30 min |
| Season 1 | Episode 99 | Cold Storage Killer | 2018-04-30 | 30 min |
| Season 1 | Episode 100 | Nameless in New Jersey | 2018-05-07 | 30 min |
| Season 1 | Episode 101 | Targeted Teacher | 2018-05-14 | 30 min |
| Season 1 | Episode 102 | Lone Star Killer | 2018-05-21 | 30 min |
| Season 1 | Episode 103 | Missing in Minnesota | 2018-05-28 | 30 min |
| Season 1 | Episode 104 | A Killer Hand | 2018-06-04 | 30 min |