Original sentence: Seung-Hui Cho (조승희 in Korean, properly Cho Seung-Hui; January 18, 1984 – April 16, 2007) was a South Korean born American who killed 32 people and wounded 17 others with two semi-automatic pistols on April 16, 2007, at Virginia Polytechnic Institute and State University in Blacksburg, Virginia, making it the deadliest school shooting in American history
Edited sentence: Seung-Hui Cho (조승희 in Korean, properly Cho Seung-Hui; January 18, 1984 – April 16, 2007) was a South Korean born American mass murderer who killed 32 people and wounded 17 others with two semi-automatic pistols on April 16, 2007, at Virginia Polytechnic Institute and State University in Blacksburg, Virginia, making it the deadliest school shooting in American history