Editing Seung-Hui Cho (section)

=== Aftermath ===
In the aftermath of the massacre, Virginia Tech canceled classes for the following week in favor of an assembly and candlelight vigil, while Norris Hall was closed for the rest of the semester. There was also a response from the government, with then-President George W. Bush and his wife Laura attending the assembly and then-Virginia Governor Tim Kaineconducting a review of every aspect of the massacre. The school also came under a great deal of criticism for delaying in warning the students and professors of the danger and putting the campus under lockdown after the West Ambler Johnston Hall shootings. The gun politics debate was also put back under the spotlight under the citation of Cho being able to purchase firearms despite his mental health history. Additionally, Cho's family has also expressed shock at his actions, with Cho's older sister Sun-Kyung stating, "I don't feel that I know him."

The investigation of the massacre, which was headed by the same company that investigated the Columbine High School shootings, eventually created a final report of more than 30 pages devoted to explaining the history of Cho's mental health. In it, the Virginia Tech staff was criticized for failing to recognize the danger of Cho's behavior.<ref>[https://www.chicagotribune.com/news/ct-xpm-2007-08-27-0708260264-story.html Va. Tech never knew of gunman's disability], ''Chicago Tribune''</ref> A main memorial was established for the deceased victims of the massacre, and a Northern Virginia chapter named after victim Liviu Librescu, the Holocaust victim, was founded in November 2008. A more efficient alert system was also started at Virginia Tech; it has been activated three times ever since its establishment, the latest incident being when a police officer was shot and killed on December 8, 2011, with the killer, 22-year-old Ross Truett Ashley, then committing suicide, in a random act of violence.
Many other responses stemmed from many colleges and universities worldwide as well as heads of state and international figures. Hundreds of colleges and universities sent condolences and also started their own candlelight vigils and memorial services as well as reexamining their security systems and mental health support services. [http://en.wikipedia.org/wiki/Pope_Benedict_XVI Pope Benedict XVI], [http://en.wikipedia.org/wiki/Queen_Elizabeth_II Queen Elizabeth II], and South Korean [http://en.wikipedia.org/wiki/United_Nations_Secretary-General United Nations Secretary-General] [http://en.wikipedia.org/wiki/Ban_Ki-moon Ban Ki-moon] were among those who sent condoling and sympathetic messages to Virginia Tech. Sporting teams and figures from both university and professional levels joined established fundraising efforts.

South Korea and its residents were especially affected in the aftermath. The South Korean government was forced to hold an emergency meeting to consider "possible ramifications", while another candlelight vigil was held outside the [http://en.wikipedia.org/wiki/Embassy_of_the_United_States,_Seoul U.S. Embassy in Seoul]. A 32-day fast dedicated to those killed in the massacre (one day for each victim) was called upon, but the fasting has been criticized by Korean-Americans. South Korean students attending Virginia Tech have also expressed fear that they will be subjected to racial prejudice after what Cho had done, although no incidents of such have been reported. Additionally, an announcement was made that safety measures have been established for Korean nationals in the U.S. In the wake of the gun politics debate that was sparked by the massacre, numerous foreign papers became highly critical of U.S. gun laws and gun culture.