"DHS + ICE investigations found Ozturk engaged in activities in support of Hamas" — a high ranking government official https://x.com/TriciaOhio/status/1904982944474648587
Her op-ed never mentioned Hamas by name. This seems to be the closest it came: "systemic changes that the collective voice of the student body is calling for are for the University to end its complicity with Israel insofar as it is oppressing the Palestinian people and denying their right to self-determination" — https://www.tuftsdaily.com/article/2024/03/4ftk27sm6jkj
Despite the headline, the author admits they don't actually know that the op-ed was a reason for the arrest — "She was disappeared without due process or explanation — only later did we learn she had been renditioned to a detention center in Louisiana."