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USC's Nikias said in his letter, \"Our Department of Public Safety officers responded immediately, and apprehended the suspect on the scene. The suspect was confirmed to be a student, and is in the custody of the Los Angeles Police Department. We are extremely proud of our Department of Public Safety officers for their quick response, and our university counselors for immediately offering support at the scene.\"

Nikias said on Monday the school's dean of religious life, Varun Soni, \"will bring the campus community together for reflection and prayer.\"

ABC News' Rex Sakamoto contributed to this report.

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