History SerialKiller / WebOriginal

** Bob Velseb is a {{cannibal}}istic murderer who is known to have butchered and eaten at least 8 people in one night alone, with his total body count implied to be much higher. When he prepares to attack a potential victim, he shares a bit of trivia related to the consumption of (animal or human) meat, before he tries to slash and stab them with his knives. During the course of the night, he successfully kills one more person and severely injures another while following Skid and Pump.

* ''WebOriginal/JeffTheKiller'': Jeff was driven insane and killed his family before going on a killing spree. Arguably the most well-known creepypasta example of this trope.

* ''Podcast/TheMagnusArchives'': The episode "A Father's Love" is narrated by a serial killer's daughter, who describes spending her childhood under his care as, unbeknownst to her, he commits his murders.

** Bob Velseb is a {{cannibal}}istic murderer who is known to have butchered and eaten at least 8 people in one night alone, with his total body count implied to be much higher. When he prepares to attack a potential victim, he shares a bit of trivia related to the consumption of (animal or human) meat and/or cannibalism, before he tries to slash and stab them with his knives. During the course of the night, he successfully kills one more person and severely injures another while following Skid and Pump.

** Bob Velseb is a {{cannibal}}istic murderer who is known to have butchered and eaten at least 8 people, and possibly much more than that. When he prepares to attack a potential victim, he shares a bit of trivia related to the consumption of (animal or human) meat, before he tries to slash and stab them with his knives. Though we only see him successfully attack two people and kill at least one of them.
** Dexter Erotoph is a former pest exterminator who, [[ItMakesSenseInContext due to turning into]] a {{living|Toys}} [[CreepyDoll Happy Fella doll]], tries (though ultimately fails) to become a serial killer. When he was human, he made a hobby out of [[BadPeopleAbuseAnimals killing certain kinds of animals just for his own pleasure]] (i.e. rats, bats, and cats), and entered the extermination business to satisfy those "needs". After becoming the Happy Fella, Dexter become so desperate to kill something that he grabbed a knife and tried to attack several humans (and one cat), but each attempt ended with comical failure.

* ''Blog/KinoIndiana'': In one of the stories, a boy named Irwin Rohmer decides to kill a classmate because he doesn't get the same rush from killing animals.
* [[spoiler:Terrence]] of ''WebVideo/KateModern'' is revealed to be a serial killer in "Precious Blood".

* ''WebVideo/CauseOfDeath'' is [[http://causeofdeath.weebly.com/ all about this]]. The [[https://www.youtube.com/watch?v=yUEFxSOVd6A very first episode]] shows the nameless killer [[spoiler:bust into the victim's house and kill him... with a granola bar.]] There seems to be some mystery behind [[spoiler:who the woman is in the picture]], but the story is ongoing.
* ''Literature/TheKindnessOfDevils'':
** ''Literature/UnderTheColdMoon'' has Sieglinde Nomura, who spent her long life kidnapping and murdering ''hundreds of thousands'' of victims via painful scientific experimentations.
** ''Literature/OnlyALonelyHeart'' has Y'golonac the Defiler, who occasionally murdered his victims after raping them as well.
* A PlayedForLaughs version from ''WebVideo/EchoChamber'': In ''TerribleIntervieweesMontage'', there was one terrible interviewee known only as [[NoNameGiven "???"]] who ''might'' have been one. He had a large knife, seemed AxCrazy, and talked about a large freezer...

* The Alice Killer from the creepypasta of the same name has killed a total of five people, leaving playing cards with the word "Alice" written on them as part of his M.O.
* There is a PlayedForLaughs version in the LetsPlay/{{Yogscast}} miniseries "Yogtours". LetsPlay/{{Turpster}}, the host, will go around various offices and give the audience a tour of that office in each episode, only to kill the owner of that office when the episode reaches its end. Every person involved has died, bar Turps, although LetsPlay/HatFilms [[DefiantToTheEnd fought back]] and LetsPlay/DuncanJones has been shown to [[BackFromTheDead appear alive again]] [[UnexplainedRecovery with no explanation]].
* ''Literature/TheHeavenCycle'' has Ashton Sharpe, who had a habit of purchasing victims from a human trafficking ring so he could rape them, and then torture them to death.

* ''WebOriginal/JeffTheKiller'': Jeff was driven insane and killed his family before going on a killing spree. Arguably the most well-known creepypasta example of this trope.
* ''WebVideo/RedLetterMedia'': Mr. Plinkett is a 119-year-old serial killer who murders women in his creepy basement. He's also a very opinionated movie critic.
* ''WebVideo/TheVeronicaExclusive'' has Jane, a [[TeensAreMonsters teenage serial killer]] as its main villain. She's also the protagonist's girlfriend. [[DestructiveRomance This turns out]] [[LoveHurts about as well as you'd expect]].
* ''Literature/TailsOfFame'' has Rast Racklyn, who raped and murdered several innocents over a period of many weeks so he could create snuff films [[FameThroughInfamy and become "famous"]].

* The "Heavy Hitter" episodes of ''Podcast/TheLastPodcastOnTheLeft'' are spotlights on serial killers throughout history. Typically running three episodes long on average, every profile follows a formula of describing the central figure's childhood, with the first episode typically concluding at their first murder, the middle episode(s) going into their careers and how they avoided being caught, and the final episode describing their ends. They do all this while treating the horrible people involved with all the respect and gravitas they deserve: [[BlackComedy Absolutely none]].
* ''Script/{{Migraine}}'' reveals that [[spoiler:Ken Muntz]] is one, having already killed at least seven women using the same M.O. with each victim.
* ''WebVideo/MyDadsTapes'': The father, donotcontinue, and [[spoiler:Uncle Don]] each have a massive body count, mostly made up of young women. The Zodiac Killer is also mentioned, having been the father's mentor.

* ''Blog/{{Slimyswampghost}}'': Of his cryptids there are:
** The Cartoon Cat is a murderous abomination who is seemingly conscious of his malice.
** The Man with the Upside-Down Face if he does cause the accidents that he appears at, then he not only feeds on the negative emotions of the victims, but he derives pleasure in bringing harm to them.
* ''Literature/CanYouSpareAQuarter'': A serial killer appears to be targetting street boys, who have nicknamed him "The Blade". He has nine victims so far and the police have no idea who it might be.
* ''WebAnimation/{{RWBY}}'': Tyrian is one of Salem's primary assassins, sent to murder in her name and his own sadistic glee. He, along with Hazel, systematically killed off most of Mistral's professional Huntsmen to deprive Haven of protectors. His mission in Mantle is to murder protestors speaking out against Atlas and General Ironwood, framing Ironwood in Mantle's eyes. Per the general, he's killed at least three targets within a single week - and goes on to kill at least ten more victims in as many seconds at Robyn Hill's election rally. His ''Amity Arena'' bio and the information Winter's got on him reveals that he was captured for a string of murders in Mistral before getting picked up by Salem.
* ''WebAnimation/SpookyMonth'':
** Bob Velseb is a {{cannibal}}istic murderer who is known to have butchered and eaten at least 8 people, and possibly much more than that. When he prepares to attack a potential victim, he shares a bit of trivia related to the consumption of (animal or human) meat, before he tries to slash and stab them with his knives. Though we only see him successfully attack two people and kill at least one of them.
** Dexter Erotoph is a former pest exterminator who, [[ItMakesSenseInContext due to turning into]] a {{living|Toys}} [[CreepyDoll Happy Fella doll]], tries (though ultimately fails) to become a serial killer. When he was human, he made a hobby out of [[BadPeopleAbuseAnimals killing certain kinds of animals just for his own pleasure]] (i.e. rats, bats, and cats), and entered the extermination business to satisfy those "needs". After becoming the Happy Fella, Dexter become so desperate to kill something that he grabbed a knife and tried to attack several humans (and one cat), but each attempt ended with comical failure.

* ''Podcast/TheMagnusArchives'': the episode "A Father's Love" is narrated by a serial killer's daughter, who describes spending her childhood under his care as, unbeknownst to her, he commits his murders.
* ''WebOriginal/Kino-Indina'': In one of the stories, a boy named Irwin Rohmer decides to kill a classmate because he doesn't get the same rush from killing animals.

* Unexpectedly used in ''Roleplay/SurvivalOfTheFittest''. Johnny "Mordread" Lamika of version one and Walter Smith of version two were both serial killers despite being high-school age teenagers. Johnny was explained as having initially never left enough evidence for the deaths to be considered anything but an accident, but was eventually caught and sent to a mental institution after a successful insanity plea on the part of his defense. Walter got away with his actions because his father was a Senator, and used his influence to cover up Walter's actions and get him out of trouble on the few occasions he was suspected. In return, his father would sometimes bring him political enemies to torture and/or dispose of.

* WebOriginal/JeffTheKiller. He was driven insane and killed his family before going on a killing spree. Arguably the most well known creepypasta example of this trope.
* ''WebVideo/RedLetterMedia's'' Mr. Plinkett is a 119-year old serial killer who murders women in his creepy basement. He's also a very opinionated movie critic.

* ''Literature/TailsOfFame'' has Rast Racklyn, who raped and murdered several innocents over a period of many weeks so he could create snuff films [[FameThroughInfamy and become "famous."]]
* Episode 3 of ''WebVideo/AnimeCrimesDivision'' features a serial killer.. of Gundam figurines.

** The Man With the Upside-Down Face if he does cause the accidents that he appears at, then he not only feeds on the negative emotions of the victims, but he derives pleasure in bringing harm to them.

* A PlayedForLaughs version from ''WebVideo/EchoChamber'': In ''TerribleIntervieweesMontage'', there was one terrible interviewee known only as [[NoNameGiven "???"]] who ''might'' have been one. He had a large knife, seemed AxeCrazy, and talked about a large freezer...

* Blog/{{Slimyswampghost}}: Of his cryptids there are: