There's even a documentary about it.
Some spooky shit, right there. But reality is even spookier ...
Penn State student Betsy Aardsma was beautiful, bright, popular, and socially conscious. If she was a character in a horror flick, she'd definitely be the last survivor, but real life is more frightening and cruel than any movie. On November 28th, 1969, Betsy told people she was going to the university's library to research a paper, but what she got instead was a single, deadly stab wound to the chest. And while librarians tend to discourage cold-blooded murder in the stacks, most would have approved of how silently the crime was carried out: Despite numerous other students being only feet away from the crime scene, nobody heard any sound of a struggle.
Thus narrowing down the suspects to a professional, a ghost, or a mime.
Betsy wasn't discovered until several minutes later, and initially, nobody realized what had happened to her, because her red dress camouflaged any blood stains. To this day, the circumstances surrounding Betsy's death remain a mystery. So beware, college students: The next time you're sent down to the stacks for a research paper, tedium and possibly stepping on a used condom aren't all you have to fear.