"It just seems weird because you know this person and it makes you wonder what made them react to that extent." And there are even some users who talk about deaths as family legend.
"One day I was working on a family tree, and I'm quizzing my mom about different names and connections and stuff," a user writes. The first one he stabbed a guy like 80 times, slit his throat ear to ear and then cut him from b***s to throat.
"When Ted Bundy was in prison (in Florida, I think?
) his favorite reporter to speak with was my cousin," one writes.
Totally thought that was just an introvert thing, but still odd." And others have comparable links to some of the world's most notorious criminals - including Ted Bundy, the prolific serial killer who confessed to murdering at least 30 young women in the 1970s, including 12-year-old Kimberly Leach.
"Ted Bundy dated my aunt," one person writes, astonishingly.
One Redditor says: "One of my classmates was shot in the head at that shooting.
He was convicted of first-degree murder and 140 counts of attempted first degree murder for the shooting at a packed midnight screening of a Batman film at a multiplex in the Denver suburb of Aurora.
"I smell the burning garbage and the pig s**t from the two feral pigs that we accidentally fenced into our camp.
"I see refugee camps with people living in tents made of their own clothes, holding signs that say "America Help". But try telling that to 90% of post-9/11 veterans, and the response is "Bulls**t you f*****g pussy, you didn't even go to Iraq."" Others recall chilling connections to killers in their childhoods - before they went on to commit heinous acts of violence.
Titled: 'People who have known murderers, serial killers, etc. "My sisters ex-boyfriend is in jail currently for killing his next girlfriend and putting her body into a cement-sealed barrel," he writes, astoundingly.
"It's so awful for that girl and her family, but all I could think is what a sucidal revenge mission I would be on if it had happened to my sister.
The Reddit contributor says that she knew Holmes - who was handed life sentences for each fatality and given a maximum 3, 318 years in prison - in college. "I remember filling out health questionnaires/medical clearance forms for a final that required in vivo work and access to the vivarium.