"On 16 April 2007, a new record was set for mass shootings, with 32 dead and 23 wounded on the Virginia Tech University campus in Blacksburg, Virginia. The shooter was 23-year-old senior Seung-Hui Cho, using Glock 19 and Walther P22 pistols, and stocked with four hundred rounds of ammunition.... The Virginia Tech shootings were described in 2007 as the worst “mass killing”, the “worst massacre”, in US history.... The Virginia Tech shooter, born in South Korea and brought to the United States by his parents at eight, was himself a child of colonial war: the US war in Korea and the continued presence of tens of thousands of heavily armed US troops on the Korean peninsula. He had been diagnosed as depressed but was likely bipolar. He appeared to be overwhelmed by wealthy, white students, who made up 75% of the undergraduate student body."
January 1, 1970
https://en.wikiquote.org/wiki/Virginia_Tech_shooting