According to court records, the Virginia Tech Police issued a speeding ticket to Cho on April 7 for going 44 mph in a 25 mph zone, and he had a court date set for May 23, AP said.

CBS News reported that paperwork found in the gunman’s backpack allowed authorities to trace one of the two handguns used in the shootings, though the serial numbers for both weapons had been removed.

Virginia Tech is quite well-known in South Korea. South Korea’s Foreign Ministry expressed its condolences, and said South Korea hoped that the tragedy would not “stir up racial prejudice or confrontation.”

“We are in shock beyond description,” said Cho Byung-se, a ministry official handling North American affairs. “We convey deep condolences to victims, families and the American people.”

Thousands of South Korean students go to the United States annually to get American college diplomas. Diplomas from Ivy League universities and other well-known American schools, as well as English proficiency, are coveted in the South Korean job market.