The ones that got away
Next Door Neighbor

Source: Wikimedia Commons
I lived next to Gary Ridgway, aka the Green River Killer. Odd guy and overly friendly. Found out from my mom, who called me minutes before it broke on the news. It was so surreal. The killings were an unsolved mystery for years almost to the point of supernatural. (Freakin_Jedi)
It blows my mind that his wife had NOOOO idea, I can’t even imagine being in that situation. (YesHunty)
The Tutor

Credit: Cherries/Shutterstock
One of my tutors at university seemed to have a very short temper.
First tutorial session was OK, but he spent five minutes telling us how importance attending his tutorials was (tutorials are kind of viewed as optional, as they’re to go over stuff covered in the lectures).
Second tutorial, a few people didn’t show up, and he spent fifteen minutes ranting about their absence. Third tutorial, even more people didn’t turn up, and he spent even longer ranting about it. After that, my friends and I decided it wasn’t worth the hassle. Apparently he ranted about the absentees even more at the next tutorial, and I’m not sure if anyone managed to stick out the whole term of tutorials.
He’d also help out in lab sessions and various other course-related activities, but everyone found him slightly uncomfortable to deal with.
After the exams, we had a bit of a party at someone’s house to celebrate. A casual invite was extended to the lecturers, tutors and assistants who’d been involved in getting us through the year. He turned up (none of the other teaching staff did) and although not entirely welcome, hung around for a while. When things were winding down, I headed off, but when I spoke to the host of the party the next day, it turned out that Mr Angry Tutor had ended up crashing on the living room floor with a load of the others (except they’d all arranged in advance to stay over), but had headed off about half six in the morning. We commented on how odd it/he was, but didn’t give it much more thought…
…until a few months later, when he was arrested for a violent murder involving dismemberment. He turned out to have a history of violence, and a lot of predatory and stalker-ish behaviours.
None of that “he was a quiet man, kept himself to himself” business – he had obvious anger issues and made people uncomfortable, and it didn’t come as a complete surprise to find out how twisted he was.
tldr: odd and angry university tutor turns out to be violent murderer (wingnutkj)
The Date

Source: Pixabay
So this is third hand, but an old boss went to the University of Utah and was in a sorority. One day she was waiting for her date in front of her sorority house with a girlfriend who was also waiting for her date. Her girlfriend’s date pulls up, but her girlfriend forgets something and runs back in the house. My former boss chatted to the man for a few minutes, she noted that he was polite and handsome. Her girlfriend comes out and they leave in his VW beetle, my former boss gets picked up by her date a short while later, and she thinks nothing of it. The next day she sees her girlfriend and asks how the date was. The girlfriend says that they started driving in her date’s VW Beetle and all of a sudden she got a splitting headache. She thought it was really strange but she felt nauseous. She apologized and asked him to take her home. He was a little upset but he dropped her back off. They didn’t go out again. Years pass, and my former boss is watching the news one night and sees a familiar man on the screen. It was Ted Bundy. (so_not_creative)