"By the end of the day, police reported they had arrested 30 people, of which only seven were self-declared students.
Authorities are still searching for at least 18 other protesters who fled the library during its initial occupation Thursday morning as well as its second occupation that night."
That tracks with the Portland protest:
https://www.koin.com/news/protests/portland-police-id-protest-occupy-psu-library-arrest-student-ceasefire-palestine-israel/
"By the end of the day, police reported they had arrested 30 people, of which only seven were self-declared students.
Authorities are still searching for at least 18 other protesters who fled the library during its initial occupation Thursday morning as well as its second occupation that night."