Virginia Tech offers 280 undergraduate and graduate degree programs to some 34,400 students and manages a research portfolio of $522 million, placing it 46th among universities in the U.S. for research expenditures and the only Virginia school listed among the top 50.[1] It is classified among "R1: Doctoral Universities – Very high research activity".[12] Virginia Tech is the state's second-largest public university by enrollment.[13] The deadliest mass shooting on an American college campus occurred on campus in 2007, during which a student fatally shot 32 other students and faculty members and wounded 23 other people.