The perpetrator , Seung - Hui Cho , killed 32 people .
The perpetrator , Seung - Hui Cho , wounded many more , before committing suicide , making it the deadliest school shooting in U.S. history .
The perpetrator , Seung - Hui Cho , killed 32 people and wounded many more , before committing suicide , making it the deadliest school shooting in U.S. history .