The WORST episodes of Mark of a Serial Killer
Every episode of Mark of a Serial Killer ever, ranked from worst to best by thousands of votes from fans of the show. The worst episodes of Mark of a Serial Killer!
"Mark of a Serial Killer" examines the disturbing behaviors of serial killers. Step into the minds of some of the worst serial killers to date as they taunt law enforcement. Some of these killers get a perverse gratification by habitually stealing mementos from murder scenes, including things like shoes, jewelry, keys, and even body parts. All of these stolen things are meant to taunt the investigators while the killers build up their notoriety. The killers often leave trademark clues behind as a way to mark something that was theirs, but the investigators often use these as clues to find them.
#1 - The Skull Crusher
Season 3 - Episode 13 - Aired 4/16/2022
Hartford, CT police investigate a string of ruthless killings in the Asylum Hill area committed by a vicious killer with a devastating mark that leaves his victims nearly unrecognizable.
#2 - The Bayou Strangler
Season 3 - Episode 12 - Aired 4/9/2022
When multiple victims' bodies are dumped around the Louisiana Bayou area, a task force is formed to catch a killer who police believe may have strangled over 20 men.
#3 - The I-40 Killer
Season 3 - Episode 1 - Aired 4/12/2021
A killer is murdering and mutilating young women along the Route 40 corridor in Delaware. But when investigators set up an undercover operation, the hunter soon becomes the hunted.
#4 - The Tourniquet Killer
Season 3 - Episode 8 - Aired 10/31/2021
A Houston killer taunts the media and authorities as he uses homemade ligatures to murder his victims.
#5 - The Other Zodiac
Season 2 - Episode 4 - Aired 4/30/2020
In the 1990s, New York is on edge as a killer leaves coded clues at crime scenes and declares his compulsion to choose victims by their birth signs. Police race against time before he can achieve twelve killings to complete the Zodiac.
#7 - Keys To A Killer
Season 2 - Episode 10 - Aired 6/13/2020
In the 1990s, Louisiana is terrorized by multiple serial killers. The small-town PD of Zachary discover the key to solving their cases when a pattern emerges with personal items missing from each local victim.
#8 - Deadly Design
Season 2 - Episode 3 - Aired 4/23/2020
Brooklyn shop keepers are afraid of closing time as a killer shoots his victims while locking up their stores. Police release surveillance footage to the press and ask the public for help to find a duffle bag wielding murderer before he strikes again.
#9 - An Eye for Murder
Season 1 - Episode 3 - Aired 2/10/2019
Dallas police discover three women murdered with their eyes surgically removed; police believe they have a deranged doctor on the loose until two rookie cops find themselves on the trail of a man with a talent for taxidermy and a hatred for women.
Watch Now:Apple TV
#10 - The Smell of Death
Season 2 - Episode 5 - Aired 5/7/2020
A rash of young men goes missing around Chicago during the 1970s; when bodies start washing up in the river, a pattern emerges; a small piece of evidence leads police to the home of a model citizen, where his furnace puts the suspect in the hot seat.
#11 - Deadly Summer
Season 2 - Episode 2 - Aired 4/16/2020
In the summer of 1976, the NYPD are chasing a man shooting at couples in parked cars with a gigantic, .44 caliber handgun. He taunts the city with terrifying letters until police get a lead about a suspect who has shot a neighbor’s dog.
Watch Now:Apple TV#12 - The Englewood Killer
Season 3 - Episode 4 - Aired 4/15/2021
Chicago police are investigating the murders of several women, whose bodies are discovered in abandoned buildings barefoot. Evidence indicates there is one offender, now police need to locate him.
#13 - Collar and Leash Killer
Season 2 - Episode 7 - Aired 5/23/2020
Numerous women are found dead by the side of the road with a unique ligature that looks like a dog collar and leash; detectives are stumped until a 17-year-old girl manages an escape from a vicious kidnapper, leading police to a serial killer.
#14 - Posed to Kill
Season 1 - Episode 1 - Aired 1/20/2019
In 1990, a serial killer terrorizes the University of Florida's campus, killing five students in under four days; the Gainesville Ripper leaves behind a crime scene where all the victims have been stabbed but the females have been posed like dolls.
Watch Now:Apple TV#15 - The Grim Sleeper
Season 3 - Episode 7 - Aired 10/24/2021
A cold-blooded killer conceals his victims' bodies with trash, discarding them like garbage in the back alleyways of Los Angeles.
#16 - Classified to Kill
Season 3 - Episode 5 - Aired 4/16/2021
Chicago detectives believe a serial killer is using the classified ads to lure and murder his victims. The investigation is set ablaze when flames obliterate evidence, until police make a shocking discovery.
#17 - The D.C. Sniper
Season 3 - Episode 14 - Aired 4/23/2022
A serial sniper terrorizes the entire DC metro area by discreetly targeting random victims out in public and in plain sight.
#18 - Killer Athlete
Season 2 - Episode 8 - Aired 5/30/2020
The I-5 corridor in California is taken over by a brazen bandit who terrorizes the highway with a blitz of assaults and murders. The only clue to the identity of the killer is a specific athletic tape used to bind his victims.
#19 - The Last Call Killer
Season 1 - Episode 2 - Aired 1/27/2019
In New Jersey four bodies are found dismembered, bagged, and thrown in roadside garbage cans; the "Last Call Killer" hunted his victims openly in piano bars but no one suspected he could be hiding in plain sight, working as a local nurse.
Watch Now:Apple TV
#20 - An Appetite for Murder
Season 1 - Episode 6 - Aired 3/3/2019
Texas authorities have a killer riding the rails and leaving a literal trail of bread crumbs after eating at victims' tables; when more murders are linked, the FBI names a Most Wanted suspect and a national manhunt for The Railroad Killer ensues.
Watch Now:Apple TV
#21 - Pattern of Murder
Season 1 - Episode 4 - Aired 2/17/2019
A killer hijacks the highways of Sacramento as several women are found strangled with their clothing cut into precise but odd patterns; a survivor leads police to a sports car driving deviant posing as a good samaritan to poach potential victims.
Watch Now:Apple TV#22 - Deaths in the Desert
Season 3 - Episode 9 - Aired 10/31/2021
El Paso investigators race to track down a ruthless killer that is burying his victims in shallow desert graves, dead or alive.
#23 - The Monster
Season 3 - Episode 11 - Aired 4/2/2022
In East Baton Rouge, investigators are on the hunt for a serial murderer. Their main clue? The killer carefully carves up and cuts the bodies of his victims after death.
#24 - Hunted to Death
Season 2 - Episode 6 - Aired 5/16/2020
Police find a string of murdered women in shallow graves in very remote areas of the Alaskan wilderness; after months of searching, police zero in on a local family man living a double life that no one suspects.
#25 - The I-95 Killer
Season 3 - Episode 2 - Aired 4/13/2021
After multiple men are discovered brutally murdered, investigators determine that each victim was last seen with a handsome stranger they met in a bar. Police ask the public for help in tracking down a dangerous drifter before he kills again.