The real ones are frightening (because you can't comfort yourself by saying that they're not real)but the only do things that every human has the capability of doing and are usually motivated by a mental diorder, but Fictional killers can conjure up ways to kill that youve only fathomed in your worst nightmares.

real serial killers r scary cuz that actually do kill ppl 4 a living

I would be afraid of the real ones if they lived near me or anywhere around the city, but there's none where I live. I just think the fictional ones are scary because they are more psychotic and creepy, but most of them can be attractive depends on how they look or act.

is this a serious question? Why be afraid of what isn't even real; what cowards

read the question again

my dream is to become a criminologist so i ave read a lot about serial killers(the real ones) and they are so scary and so disgusting .

Ofcourse real! They're real-life monsters! Next door neighboor nightmares!

Made up serial killers do things that can be much more frighting than a real serial killer would do. Of course the fact that these killers aren't real don't make them scary, but if they were some of them would be horrifying compared to the ones that are already known and existed.

Real Ones

Same Here

Same

To paraphrase Byron, real serial killers are stranger (and scarier) than fiction.

Real Serial Killers

Fictional, because there are many fictional serial killers such as Freddy Krueger who have special abilities making them far more dangerous than people.

Obviously