https://www.aetv.com/articles/penn-state-student-betsy-aardsma-fatal-stabbing-unsolved
Murdered at Penn State: Betsy Aardsma's Unsolved 1969 Death | A&E
Dec 4, 2025 - The grad student was fatally stabbed in a university library.
penn statebetsy aardsma
https://en.wikipedia.org/wiki/Murder_of_Betsy_Aardsma
Murder of Betsy Aardsma - Wikipedia
murder of betsy aardsmawikipedia