2 arrested after stabbing at Indiana University BLOOMINGTON, Ind. - Two Indiana University students were charged Sunday morning in connection with a stabbing that injured another student at a campus apartment building, school officials said. University police arrested 18-year-old Zesen Shen and 21-year-old Kaiyu Lao, IU spokesman Mark Land said in a news release. Shen has been charged with intimidation and battery and Lao was charged with intimidation, Land said. Police said Shen, Lao and a 20-year-old IU student were in the Tulip Tree apartment's parking lot around 3:30 a.m., Land said. Witnesses told campus police the three were there "to resolve a dispute when the suspects began chasing victim and wounded him with a knife," Land said. University police Lt. Craig Munroe told the Indianapolis Star the student was stabbed in the back. The 20-year-old was taken to IU Health hospital in Bloomington with an injury that isn't life-threatening, Land said. The incident prompted university officials earlier Sunday to tell students to seek shelter behind locked doors. The school gave students the all clear around 7 a.m.