Cho killed himself after law enforcement officers breached the doors of the building where he had killed and injured the majority of his victims.
Cho arrived in US at a young age with his family. He had a severe form of anxiety disorder known as selective mutism in middle school as well as depression.
During Cho’s last two years at Virginia Tech, several instances of his aberrant behavior, as well as plays and other writings he submitted contained references to violence, and caused concern among teachers and classmates.